Why Is My Apricot Tree Growing So Slowly?

An apricot tree that makes minimal progress year after year — producing only 10–15 cm of new shoot extension when it should be making 30–60 cm — is not thriving. A young tree in its first few years after planting should be establishing rapidly, and an older established tree should be making enough new growth annually to renew the fruiting wood and maintain a productive canopy. Persistent slow growth signals a problem with nutrition, soil, drainage, or competition from other plants.

Grass competition

If your apricot tree is growing in a lawn or in a border with grass growing up to the trunk, the grass is competing for both water and nitrogen in the tree's critical root zone. Keep a clear grass-free circle of at least 60 cm radius around the trunk (90 cm is better for young trees). This can be maintained with a deep mulch of wood chips or bark, which simultaneously suppresses grass, retains moisture and gradually improves soil structure as it decomposes.

Nitrogen deficiency

Shoot growth is directly driven by nitrogen availability. A tree that has not been fed for several years, growing in thin or sandy soil with high leaching, will make minimal extension growth. Apply a balanced fruit tree fertiliser or sulphate of ammonia in February. In subsequent years, a mulch of well-rotted compost applied in spring provides a slow-release nitrogen source and improves soil water retention simultaneously.

Poor drainage and waterlogging

Apricots growing in waterlogged or compacted soil cannot develop a functional root system and will remain stunted and unproductive. The roots suffocate in anaerobic conditions and the tree cannot absorb water or nutrients effectively. Check whether water puddles around the root zone after rain. If drainage is poor, improve it — raised beds, drainage channels, or deep grit incorporation — before expecting growth to improve.

Dwarfing rootstock

Some apricots are grafted onto dwarfing rootstocks that inherently limit growth. This is often intentional for small gardens but can frustrate growers expecting vigorous trees. Check what rootstock your tree is on — Pixy is a dwarfing rootstock commonly used for apricots in the UK and produces naturally compact, slow-growing trees.