Adding fresh sweetness to summertime delights such as pie , chalk cream and cheesecake , raspberriesare well worth space in the abode garden . snort plant ( Rubus spp . ) are uprise in U.S. Department of Agriculture plant hardiness zone 3 through 9 , depending on cultivar , and are available in varieties formulate specifically for small-scale - space growing . While it is tempting to take a snort based only on colouration and taste , consider grow habit , size and soil requirements before purchasing a razzing for container growing .
Choosing a Variety
To grow bird in a container , seem for thornless salmagundi that require no staking . Dwarf and compendious varieties of raspberries make ideal container plants .
Tip
Raspberries areself - fertile , so they do not require two flora for cross - pollenation .
Selecting the Right Container
Use a large 7- to 10 - gallon container for raspberries . Wine barrels , food - grade barrels and decorative planters all make suitable container for razz . check that the container has sufficient drain , with 10 to 20 1/4 - inch holes in the bottom . apply a 1/4 - inch exercise bit or use a hammer and 1/4 - inch nail to add up more drain holes if necessary .
To make prompt the planter easier when it is filled with grease , grade the container on a plant dolly before filling .
Warning
To avoid toxin leeching into the plant , never use containers that are made of treated wood or those that have bear chemicals .
Planting Raspberries
After the last chance of frost has passed , come in one raspberry bush plant life in each container to prevent crowding . Fill a container to 3 inches below the top with in high spirits - quality potting soil or a mixture ofequal partscompost , topsoil and grit . Raspberries like a soil pH of 5.6 to 6.2 , which is slightly acidulent . Test the soil mixture after plant with an at - habitation ground testing outfit , and add 1 column inch of peat moss to increase acidity if the stain pH is above 6.2 .
Because there is compost in the land admixture , it is not necessary to fertilize raspberries at planting .
grasp a hole twice as wide as the root ball and just deep enough so that , when the hole is filled , the aerofoil of the soil comes 1inch above the root ball . Water well after embed .
Raspberries need full sun , so place the container in an area that gets 6 to 8 time of day of Dominicus .
Caring for Raspberries
Raspberries grown in container dry out out more rapidly than those in the ground . Check the moisture of the dirt day by day andwater any metre the dirt is juiceless 1 in below the surface of the soil . In the heat of summer , containers may call for watering once or twice a day .
Fertilize raspberries every three weekswith a mixture of 1 tablespoonful of fish photographic emulsion and 1 gallon of piss per cubic foot of soil . hoot are ready to glean from early summer to mid - autumn , reckon on the variety .
Because roots in a container are not insulated by the ground , the razzing must be bring indoors over the winter . Before the first hard Robert Lee Frost , move containers into an unwarmed garage , shed or basement where temperatures rest between 30 and 50 degrees Fahrenheit .
