Growli
Get the app

Pruning guide

How to prune pistachio

Best time
Late winter while dormant, before new growth begins (February–March)
How often
Annually during training years; every 1–2 years for established trees
Technique
Train young trees to 3–5 scaffold branches in the first growing season, shortening scaffolds in June to encourage side branching. On mature trees, thin inward-growing and crossing wood to maintain light penetration; remove no more than 15% of the crown per season.

More pistachio care

Pruning pistachio — FAQ

When should I prune pistachio?

Late winter while dormant, before new growth begins (February–March). Train young trees to 3–5 scaffold branches in the first growing season, shortening scaffolds in June to encourage side branching. On mature trees, thin inward-growing and crossing wood to maintain light penetration; remove no more than 15% of the crown per season.

How often does pistachio need pruning?

Annually during training years; every 1–2 years for established trees. Pistachio (Pistacia vera) requires structural training in its early years and moderate annual maintenance thereafter. Prune to an open-vase form in late winter. Established trees need only light annual thinning — removing 10–15% of the crown keeps yields high; removing more than 30% increases the proportion of closed (blank) nuts, directly cutting into harvest quality.

How do you prune pistachio?

Train young trees to 3–5 scaffold branches in the first growing season, shortening scaffolds in June to encourage side branching. On mature trees, thin inward-growing and crossing wood to maintain light penetration; remove no more than 15% of the crown per season.