Consolidaspp.

The best part of living somewhere cold and snowy is that the wildflowers that bloom after wintertime bring me a sentiency of delight I ca n’t quite trace .

Here in Alaska , it ’s the idle roses , prairie gentian , and fireweed that come along in spring which make every insensate mean solar day worthwhile .

In Montana , where I produce up , it was the arrowleaf balsamroot , lupines , and wild larkspur .

A close up horizontal image of purple larkspur flowers growing in the summer garden, pictured in light sunshine on a soft focus background.

C. ajacis. Photo by Beko, Wikimedia Commons,CC BY-SA.

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Even if you do n’t live in a state with freezing dusty winter , you could still enjoy some of these wizardly flowers that raise the spirits amount bounce .

Like larkspur . Oh , how I love the tall spires , with their blue , reddish blue , rose , and whitened blossoms .

A vertical close up image of a purple, upright annual larkspur flower growing in the garden, pictured in bright sunshine on a green soft focus background. To the center and bottom of the frame is green and white printed text.

C. ajacis. Photo by Beko, Wikimedia Commons,CC BY-SA.

If you ’d like to grow this gorgeous annual in your garden , this guide has mother you covered .

What You’ll Learn

What Are Larkspur? (And Are They the Same as Delphiniums?)

“ Larkspur ” is such a upbeat name , is n’t it ? It makes me opine of early summertime , dewy good morning , and everything good and wonderful in this existence .

An other acknowledgment of the name occurs in John Gerard ’s book , “ The Herball , or Generall Historie of Plantes , ” published in 1597 .

Is n’t that spelling just heroic ?

A vertical close up image of a purple, upright annual larkspur flower growing in the garden, pictured in bright sunshine on a green soft focus background. To the center and bottom of the frame is green and white printed text.

Gerard refers to these as “ titlark heele , ” “ escapade claw , ” and “ Larks gad . ” All of these name reference the flower ’s resemblance to the claw of a lark .

Can you see it ?

The bloom is also sometimes called knight’s - spur .

A close up of the delicate purple flowers of the summer blooming annual, larkspur, growing in the garden pictured on a green soft focus background.

Of this bloom , Gerard write , “ The seed of Larks spurring drunken is unspoilt against the stingings of Scorpio ; whose vertues are so forceable , that the herbe onely throwne before the Scorpio the Scorpion or any other venomous beast , couseth them to be without force or forcefulness to suffer , insomuch that they can not move or stirre untill the herbe be taken away . ”

I would n’t essay flinging larkspur flowers at a scorpion or any other “ venomous animate being ” to keep it from stinging me , but it ’s fascinating to see what theatrical role the plant played in the sixteenth century , is n’t it ?

Gerard also mentions similarity betweenthe perennial delphiniumand the yearly larkspur , which “ perisheth at the first approch of Winter . ”

A close up horizontal image of a small lark (bird) walking along the ground, pictured on a soft focus background.

He writes , “ Larks heele is calledFlos Regius : of divers , Consolida regalis … It is also thought to be the Delphinium which Dioscorides describes in his third booke ; wherewith it may concur : for the floures , and especially before they be perfected , have a certaine shew and likenesse of those mahimahi , which old delineation and armes of certain antient families have expressed with a crooked and deform figure of speech or shape ; by which signe also the heavenly Dolphine is correct forth . ”

“ Flos regius ” translates from Latin to “ the majestic flush . ”C. regalisremains the botanic name for a metal money of larkspur today , and the genusDelphiniumis a close relative .

Is n’t that too nerveless ?

A close up vertical image of the dark pink flower of Consolida ajacis growing in the summer garden pictured in bright sunshine on a soft focus background.

But here ’s where thing get slick . Both larkspur and delphinium belong to to the Ranunculaceae , or buttercup folk .

Well known genera in the Ranunculaceae family include : Ranunculus , Consolida , Delphinium , Helleborus , Thalictrum , Clematis , andAconitum .

It ’s commonly think that yearly larkspur was once include in theDelphiniumgenus . But as you could tell from John Gerard ’s 1597 publishing , larkspur was deemed aConsolidaspecies long before it was classify asDelphinium .

A close up horizontal image of the bright purple flower of Consolida orientalis growing in the garden pictured in bright sunshine on a green soft focus background.

Yet gardeners everywhere often refer to both perennial delphiniums and yearly larkspur by the same uncouth name , “ larkspur . ”

Under the USDA ’s categorization composition lean for the genusDelphinium , you ’ll see it list as the genus for all plant with the vulgar name “ larkspur ” – whereasConsolidais save for plants with the uncouth name “ knight’s - spur . ”

To put it shortly and sweet , larkspur , larks - heele , lark - pincer , and knight’s - spine all refer to the same yearly peak , which is sometimes list in the genusDelphiniumand other times as aConsolida .

A close up horizontal image of the delicate purple flower of Consolida pubescens, pictured in bright sunshine on a soft focus background.

There are forty species in theConsolidagenus , and the ones most commonly acquire are :

C. ajacis

C. ajacisis known as giant larkspur or doubtful knight’s - spur .

It ’s aboriginal to the Mediterranean and southern Europe , and has naturalized in much of the United States and Canada .

C. orientalis

C. orientalisis commonly cognise as Oriental knight’s - spur .

This specie is aboriginal to North Africa and southerly Europe and it has naturalized in Vermont , Texas , Kansas , and Missouri .

C. pubescens

C. pubescensis commonly known as hairy knight’s - spur .

It is native to the westerly Mediterranean realm and it has naturalize in North Dakota , Missouri , Illinois , and Tennessee .

C. regalis

This species is screw as forking , rocket , or field larkspur , as well as royal knight’s - spur .

It ’s aboriginal to western Asia and most of Europe , and it has naturalized in many part of the United States and Canada .

C. tenuissima

Commonly known as tenacious knight’s - spur , it ’s native to Greece and has naturalize in Missouri .

As you could see , none of the above - described species are aboriginal to the United States . Instead , they were brought here from all around the humankind , from North Africa and the Mediterranean to Northern Europe and Western Asia .

But they sure thrive here , and they can add a gorgeous rosiness of colour to any garden .

A close up vertical image of a blue Consolida regalis flower pictured on a soft focus background.

Cultivation and History

Sometime between 1550 and 1573,gardeners brought larkspurto England from Italy .

The flower made its way to the Americas not long after , and had incur a property in gardens along the East Coast before the American Revolutionary War began in 1775 .

From there , it naturalized all over Canada and the expanding United States .

A close up horizontal image of purple, upright larkspur growing in the summer garden, pictured in light sunshine on a soft focus background.

As you might suppose from these grand growing habit , it ’s a hardy plant : you’re able to grow it inUSDA Hardiness Zones2 to 11 , and it will ego - seed readily after the blooms finish for the time of year .

These beauties spring up to heights of 36 to 48 inches with a 12 - inch spread of flowered spikes .

Read on to learn how to spread these plant !

A close up of upright flower stems with purple blossoms growing in the summer garden pictured in bright sunshine on a soft focus background.

Larkspur Plant Propagation

Because it ’s an annual that matures in just 77 to 84 day , the best way to pass around larkspur is from seminal fluid .

Though the same plants wo n’t come back year after yr , these easily reseed – and will take over your garden if you lease them .

Keep that in intellect while plant and handle for these stunning blossom . If you do n’t want them to pop up in unexpected places , deadhead the flowersbefore they take shape seed pods .

A close up horizontal picture of the upright purple flower and seed pods of Consolida regalis growing in the garden pictured on a blue soft focus background.

From Seed

Whether you ’re planning to seed seeds indoors or outdoors , you ’ll postulate to cold stratify them for the best shot at germination .

In colder climates , this happens naturally . The flora drop its seeds in the fall , and in the wintertime , rainfall or melting snow may rinse the seeds into different areas of the garden .

To cold stratify your come , put them in an airtight container with some damp perlite , which you canfind at the Home Depot .

A close up of the green and white packaging for Miracle-Gro Perlite on a white background.

Miracle Gro Perlite

Then , leave the container in the refrigerator for a hebdomad .

swear me on this one . I once disperse seminal fluid all over my flowerbed in mid - outflow and waited for the magic to happen .

A close up horizontal image of a small blue flower with a black center, covered in light droplets of water, pictured on a green soft focus background.

Since it never got cold enough to stratify the seeds , they did n’t germinate . What regret !

For outflow planting in Zones 2 to 5 , you ’ll desire tostart source indoorsfour to six calendar week before the average last frost appointment in your sphere .

Use biodegradable sight instead of pliant seeded player trays , as these plants grow foresighted taproots that do n’t care being disturbed .

A close up horizontal image of small purple field larkspur growing in a meadow with delicate purple flowers, pictured in light sunshine on a green soft focus background.

To inseminate , fill each sens with potting premix . Place two seed inside each pot and hide with just 1/4 in of soil .

Using a spray bottle , water the fresh planted seed and keep the soil moist until germination , which should happen in two to three workweek .

When the plant have two to three sets of true leaves , slender to one plant per pot . Wait until two weeksafterthe average last Robert Frost day of the month in your area before you transplant them out to the garden .

A close up horizontal image of tall upright spikes of pink Consolida flowers growing in the summer garden pictured in bright sunshine on a soft focus background.

To transplant , grok a kettle of fish in a localization that get six to eight hr of sun daily and set the biodegradable green goddess at heart . Backfill with soil and water thoroughly .

In Zones 6 to 11 , you could sow these seed outside two weeks after your average last frost date – after you have moth-eaten stratified them , as described above .

choose a spot that gets at least six to eight hours of Dominicus every day .

A vertical close up image of a delphinium plant with a wooden stake tied to the stem with green tape and foliage in soft focus in the background.

But keep in intellect that if you live in Zones 7 and up , your larkspur would appreciate a duo hours of afternoon shade to keep nerveless during raging summer afternoons .

Sow two source apiece , half an inch deep , in holes 12 inches apart . Water thoroughly and keep the soil moist until germination , which will pass in two to three hebdomad .

Now here ’s the neat matter about larkspur for those of you in Zones 6 to 10 : you’re able to actually plant it in the fall !

A close up horizontal image of tall upright spikes of flowering purple larkspur growing in the summer garden with trees in soft focus in the background.

While the soil temperature outside might be chilly enough ( 55 ° F or cold ) to cold stratify the source , you may still opt to stratify them in the icebox for two weeks before implant , just in case .

In other September , sow seed outdoors according to the instruction above . The ejaculate will germinate and grow steadily for a calendar month or so until the coldest weather hit .

If temperature drop down below freezing , the plant may turn brown and attend all in . But it ’s simply going dormant , carry through up energy for when warmth returns .

A close up square image of bright blue upright stems of Consolida ‘Blue Bell’ growing in the garden with foliage in soft focus in the background.

Avoid water the industrial plant when it ’s dormant , but remember to initiate back up again once you see young development .

In other springiness , the plant will maturate new green leaf and emerge strong and marvelous , blooming through mid - saltation , and into other summertime for a repetition show with veritable deadheading .

How to Grow Larkspur Flowers

As you might guess from its tempestuous origins , larkspur can flourish in a wide-eyed soil pH range of mountains , but anything between 5.7 and 7.0 is ideal . These plants are n’t fussy , but they prefer pretty rich , moderately loose , well - draining soil .

Unlike their delphinium cousins , larkspur are unfearing plants that do n’t need clayey staking from the source . They ’re in reality fairly leisurely to care for after they ’ve sprouted and grown a few true leaves .

If you do retrieve that the stalk ask support , drive a wooden stake down into the soil three inches behind the flower stalk and affix the stalk to the post with a piece of stretch sleeper .

A close up square image of a purple upright flower stalk of Consolida ‘Lilac Spire’ pictured in the garden in light sunshine on a soft focus background.

When the plants have two to three sets of dependable leaves , fertilize them with a balanced 10 - 10 - 10 ( NPK ) fertilizer according to package instructions .

Repeat this operation once a month until the efflorescence open .

Once or twice a week , irrigate the plants with an inch of water , depend on the amount of rainfall .

A close up square image of pink, purple, blue, and white flower stems pictured on a soft focus background.

Before you water , check the moisture level by sticking your finger into the filth about one column inch down . If you sense moisture , hold off on watering for another day or two . You want to keep them moist , but not waterlogged .

Also , take the time to rescind the leaves and water underneath them rather of irrigating from above . This will serve keep them dry and disease - barren .

Growing Tips

Pruning and Maintenance

To extend the industrial plant ’s blooming menstruum , trim by spend heyday spikes quick with a tough pair of scissors orgardening shears .

If you recover any signs of pests or disease on the stalk , dispose of them far away from your thriving garden , or burn them .

That ’s what I had to do with my aphid - overrun delphinium stalks recently , and it helped keep the pests from get along back to my garden .

A close up of the packaging of Bonide Neem Oil for managing pests in the garden, pictured on a white background.

you’re able to also rationalise a few spikes from each plant just after they flower , and determine the spikes in a vase for some indoor sunniness .

take moreabout extend the life story of cut organization here .

Like deadheading , this will boost the larkspur to develop new spires .

A close up of the packaging of Monterey Sluggo Max, a chemical treatment for managing slugs and snails in the garden, pictured on a white background.

If you ’d like the larkspur to reseed itself , allow the flowers go to semen toward the remnant of the summertime .

After the ejaculate pod open and cut down their seeds , remove all dead vegetation from the flower bed .

Larkspur Cultivars and Mixes to Select

Whether you roll in the hay blues , purples , or pink , there ’s a cultivar or fuse available to beseem your discernment .

Here are a few of my pet selections of larkspur to constitute :

Blue Bell

Are you looking for a baby - puritanic heyday to raise your spirits every break of day ? Then ‘ Blue Bell ’ is theConsolidacultivar for you .

‘ Blue Bell ’

With sky - colored spire that reach four foot in top , look at ‘ Blue Bell ’ will soothe any worry that ’s troubling you .

A close up vertical image of the packaging of a spray bottle of Monterey Liquid Copper Fungicide pictured on a white background.

retrieve seeds in a smorgasbord of packet sizesavailable at Eden Brothers .

Lilac Spire

lawful to their name , these violet flowers are the perfect bloom to set off white and blue - hued larkspur in your garden .

‘ Lilac Spire ’

Or plant a whole bunch of them together for a startlingly sensational sea of lilac loveliness .

A horizontal image of a wildflower meadow with bright red poppies and purple larkspur flowers, with blue sky and hills in the background.

you’re able to feel seedsavailable at Eden Brothers .

Rocket Larkspur Mix

Looking for a classicConsolidato adorn your yard or garden ? This rocket salad larkspur commixture brings a delightful mix of colouring .

You never know what shade a plant will be until it blossom along with its sisters in a breathtaking display of pinkish , white , and lilacs steeple .

Rocket Mix

A close up horizontal image of a glass vase with delicate stems of tiny purple flowers on a white soft focus background.

Even better , rocket salad larkspur shoots up to six feet marvelous . works against a front - facing wall or fence for a blazing show of color .

Find seedsavailable at Eden Brothers .

Managing Pests and Disease

Unlike its cousin , delphinium , larkspur are reliably pest and disease insubordinate .

As far as pests go , your big foes will be aphids and slugs .

Bonide Neem Oil dressed ore

If you see clusters of aphids sucking the life from yourConsolidabuds or stalks , spray them with a neem oil - base insect powder , likethis one from Arbico Organics .

The next day , spray the carcasses off with ablast of water from the hosiery . Reapply the neem fossil oil every few days , or anytime you see a sign of the zodiac of a life aphid .

check out out this guide tolearn more about managing aphids in your garden .

Slugs and escargot chew holes in the leave of absence but loosely allow efflorescence alone .

Monterey Sluggo Maxx

To get disembarrass of the squishy blighter , spread Sluggo Maxx , available from Arbico Organics , around the flora . I lie with this stuff because it ’s safe to use around positron emission tomography .

Learn slugs and snail in this template .

All parts ofConsolidaplants are toxic to man and animals alike when ingested , sodeer , rabbits , moose , and other critters avoid them .

If you go in the Pacific Northwest or a likewise rainy climate , catch out for various fungal disease that can evolve , like powdery mildew , root rotting , and crown rot .

Powdery mildew leaves white moldy spots all over the leaves .

Monterey Liquid Copper Fungicide

To care for an infection , spray the plant life with a copper antimycotic agent mathematical product , likethis one from Arbico Organics .

you’re able to read more about stopping powdery mildew here .

Root rot andcrown rotare get by fungi in thePythiumgenus and the bacteriumErwinia carotovora , which boom in boggy soil , and these are a picayune more serious .

telling star sign include leaves that turn yellow and stop grow . Pull moved plant life and avoid replant in the same location for at least a year .

The best way to steer vindicated of these diseases is to check for moisture before watering and do not irrigate overhead to avoid creating boggy circumstance .

Best Uses for Larkspur Flowers

Larkspur defecate a perfect addition to anywildflower gardenor miscellaneous moulding . Plant with Indian corn poppy ( Papaver rhoeas ) for an specially satisfying blend of color .

These blossom do well in a container , too .

Next year I plan to seed them in whiskey barrels to put in the corners of my garden .

And of course , larkspur looks delightful when stalks are cut and put into vase , whether as part of a bouquet or displayed all on their own .

Quick Reference Growing Guide

Welcome to La-la-larkspur Land

Though these flowers involve a small extra care to get from pre - sprouting to the seedling degree , they will reward you for your efforts by breezing through the rest of their living with hardly a forethought in the world on the part of the nurseryman .

You wo n’t rue your venture in the realm of the refined , splendid larkspur .

And do n’t forget to check out these article ongrowing flush in your gardennext :

Photo by Laura Melchor © Ask the Experts , LLC . ALL RIGHTS RESERVED.See our TOSfor more details . Originally publish on August 5th , 2020 . Last updated March 23rd , 2023 . intersection photos via Arbico Organics , Eden Brothers , and Home Depot . Uncredited exposure : Shutterstock .

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Laura Ojeda Melchor