Our Harry Sweet Pea Seedlings

Plant Our Harry Sweet Peas in well prepared, moist soil that ideally has been improved with organic matter. Erect supports for the peas to climb up before planting. They can also be planted in pots of sufficient size - allow 6 litres per plant - and with an ideal planting medium of 50% compost, 40 %top soil and 10% well-rotted manure. General purpose compost will do however but produces fewer flowers.

Our Harry can be grown in a container, as long as it is large enough - allow at least 5 litres per plant - and they are kept well fed and watered, as sweet peas are famously thirsty and greedy. Make sure they get plenty of water and potassium (potash) rich plant food, such as tomato fertiliser.

The principal requirement is enough water - Sweet Peas are thirsty and hungry plants. They can cope with a little shade but flower better in full sun.

Space each plant about 30 cm apart and about 5 cm from its support. The hole should be deep enough to accommodate the longest root and the soil should come up to the level of the first side shoot. Use wire/netting/twine between the supports so that the Sweet Pea can climb naturally. You will still need to tie them into the frame. They grow fast, so check every ten days or so.

Water well; the soil around sweet peas should never dry out. As the flowers develop pick them and keep on picking, otherwise they start to form seedpods and will stop flowering altogether. Keep tying in and picking for as long as you can. Perfectionists will remove the curling tendrils which grip other stems and can result in flowers with wiggly stems and also will remove side shoots. see the website for more advice on training sweetpeas.

, By all means, apply a high potash and phosphate fertiliser during the growing season. (Sweet Peas actually fix nitrogen from the air into the soil so you don't need more of that.) Home-made comfrey liquid is perfect or Tomorite will do especially if you are on a sandy soil.