Saffron Milk Cap
Lactarius deliciosus
The saffron milk cap is one of the few mycorrhizal mushrooms that has produced harvests in orchards, but only with inoculated pine seedlings and over many years.
Lactarius deliciosus is an ectomycorrhizal mushroom native to Europe. A 2021 review reports on two orchards in New Zealand in which pines inoculated with the fungus produced mushrooms. Yields reached 0.4 kg and 1,100 kg per hectare under Pinus radiata and Pinus sylvestris at 6 and 9 years after planting. When the canopy of P. radiata began to close 7 years after planting, yields dropped drastically, while P. sylvestris orchards still gave 690–780 kg per hectare 11 years after planting.
Cultivation parameters
Practical literature-range
| Difficulty | Advanced — Grown only in tree orchards with mycorrhizal pine seedlings; yields drop when the canopy closes |
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Taxonomy & ecology
| Scientific name | Lactarius deliciosus |
|---|---|
| Also known as | Delicious milk cap, Red pine mushroom |
| Synonyms | Agaricus deliciosus |
| Family | Russulaceae |
| Order | Russulales |
| Genus | Lactarius |
| Lifestyle | Mycorrhizal |
| Native range | Europe; introduced elsewhere |
| Cultivation status | Experimental cultivation |
Growing notes
That is the closest any mycorrhizal mushroom comes to being farmed outside the truffle orchard, but it is a decade-long forestry project, not a home crop, and the review stresses that full-scale field trials are needed to predict yields. There is no bag or kit method. This page covers cultivation only and cannot help identify wild mushrooms or tell you whether a mushroom is safe to eat.
Questions about growing Saffron Milk Cap
Can I grow saffron milk caps at home?
Not in a bag or on a kit. Orchards use mycorrhizal pine seedlings and take years to produce.
What yields have been reported?
In New Zealand orchards, up to about 1,100 kg per hectare at 9 years under Scots pine (Pinus sylvestris), and 690–780 kg per hectare at 11 years.
Why do yields drop?
In the review, canopy closure under Pinus radiata about 7 years after planting was followed by a drastic reduction in yield.
What tree does it need?
Pines worked in the New Zealand orchards.