![]() If you have started your seeds inside you will need to harden off the seedlings before transplanting into your garden once all risk of frost has passed. 'You can also sow extras indoors as a precaution, planting them out once they are well-established seedlings,' adds Molli Christman. When sowing directly use a tool or stick to make a furrow as it is important to bury the seeds at one-inch depth, placing each seed 3-5 inches (10-15cm) apart, and then after sowing cover the seeds without creating a mound, before gently watering the soil. After a couple of weeks, once the plants have established and developed secondary shoots, select the strongest shoot and remove the others, this will encourage a stronger plant and larger blooms.Īlternatively, you can sow your sweet peas direct in the ground in fall or spring, first preparing the ground by adding in well-rotted homemade compost or manure. Planting in a cluster of three will create a more rambling look.ħ. Plant a seedling at the base of each bamboo cane or obelisk support by digging a hole deep enough to accommodate the long roots, infilling with soil and watering in well. In late March to April, the plants are ready to be planted out. Sweet peas are climbing plants and are best grown up a vertical support such as an obelisk, wigwam or jute netting.Ħ. At this stage you can also prepare your supporting structure. Sweet peas are hungry plants, so fertilize the soil by digging in plenty of well rotted manure or organic matter. Before the seedlings are ready to be planted out in spring, it’s important to prepare your site. Once the seedlings have developed two pairs of leaves, pinch out the growing shoot just above the top pair to encourage more vigorous side shoots.Ĥ. Sweet peas are hardy, so once the seedlings have sprouted the sweet peas can be moved outside into a cold frame or a sheltered area of the garden to get maximum sunlight.ģ. To assist germination, place them in a greenhouse or on a sunny windowsill.Ģ. Plant a single seed about 1cm deep into each cavity, cover with compost and water. ![]() To encourage strong and vigorous root growth, sow sweet peas into root trainers or 3 inch pots filled with a mixture of potting compost and 20 per cent sand. Place the seeds on damp blotting paper or kitchen paper towel for 24 hours and also nick the outer coat of the seed with a sharp blade or nail clippers so it can absorb water better.įollow this step-by-step guide on how to grow sweet peas from seed in containers:ġ. Preparing your sweet pea seeds will help you get the best results from growing sweet peas. ![]() You can either sow the seeds directly in the ground in cool weather, in fall or spring, or in containers indoors to be then hardened off and planted out in mid-spring. ![]()
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