When to plant or sow Tarragon?

Tarragon thrives in full sun and well-drained soil, making it ideal for sandy or loam-based ground. It dislikes waterlogged conditions, so if your soil is heavy clay, work in plenty of grit or sharp sand before planting to improve drainage. Choose a warm, sheltered spot where the plant will receive at least six hours of direct sunlight daily; tarragon grown in shade produces less flavourful foliage. Plant tarragon in April or May once the risk of hard frost has passed and the soil has begun to warm. You can start from young plants or divisions rather than seed, as French tarragon (the culinary variety) rarely sets viable seed and must be propagated vegetatively. Dig a hole slightly larger than the root ball and set the plant at the same depth it was growing in its pot. Space plants 35 cm apart to allow for their mature spread of 30–40 cm. After planting, firm the soil gently around the roots and water in well to settle the plant. Tarragon has low water needs once established, so avoid overwatering from the outset. A light mulch of gravel or fine grit around the base helps keep the crown dry and discourages rot, particularly in wetter climates. Avoid organic mulches like compost, which can retain too much moisture. Tarragon is hardy to zone 5a and will overwinter outdoors in temperate Europe, but good drainage is essential for winter survival. If planting in a container, use a loam-based compost with added grit and ensure the pot has adequate drainage holes.