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Most Sweet Peas are summer flowering. They need at least 12 hours’ daylight before they can flower. If sown too early in northern New Zealand the plants become very big before they flower. Sweet Peas prefer a sunny position away from strong blustery winds. Stake or provide support for taller growing varieties. Seed can be sown outdoors from March to early June in a sunny, well-drained site. In cold areas it would be best to wait until spring. Sweet Peas require regular watering, especially as the temperature increases. Sweet Peas are versatile and easy to place in the garden, pots and containers, and they also make themselves happily at home on trellis, walls, twining through other climbers and up into smaller trees and shrubs.
Some popular varieties to look out for are High Scent, Old Spice mix, Unwins varieties and Wiltshire Ripple.
Like building a house a good foundation is the key to success in your garden. The better the soil, the better your plants will grow. If you are starting with an existing garden bed dig in organic matter to your soil. The best times to plant are early in the morning, or late in the day so the plants aren't exposed to the hot sun straight away. Always water plants well before and after planting.
Sweet peas attract bees and butterflies into the garden. Like other pea family members, they fix nitrogen into the soil and so they benefit a wide range of vegetables such as brassicas, leafy greens like Silverbeet and Spinach and Salads.
If you are going to use Sweet Peasto treat an existing health condition please consult with your healthcare provider first.