Prefers a heavy soil and a damp situation. Grows well in heavy clay soils. Tolerates very infertile sites. A very wind resistant tree with excellent establishment in severely exposed sites, it tolerates severe maritime exposure. The red alder is a very fast growing tree, even when planted in severe exposure[75, 229, K], but it is short-lived, dying when 60 - 80 years old. Trees that are 5 years old from seed have reached 6 metres in height on a very exposed site in Cornwall, they are showing no signs of wind-shaping. This is an important pioneer tree, quickly invading logged or burnt over sites, and providing ideal conditions for other trees to become established. A very ornamental tree. This species has a symbiotic relationship with certain soil micro-organisms, these form nodules on the roots of the plants and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby. Red alder has been estimated to fix as much as 300 kg of nitrogen per hectare.

Catkins - raw or cooked. They are rich in protein but have a bitter flavor and are not very palatable. Inner bark - cooked, It must be dried since it is emetic when fresh. No more details are given but inner bark is often dried, ground into a powder and then used as a thickening in soups etc or mixed with cereals when making bread. Sap - raw. Harvested in late winter, the flow is best on a warm, sunny day that follows a cold frosty night. A sweet flavor, it was often used to sweeten other foods. Buds. No further information is given, does this refer to the flower buds or leaf buds?

Seed - best sown in a cold frame as soon as it is ripe and only just covered. Spring sown seed should also germinate successfully so long as it is not covered. The seed should germinate in the spring as the weather warms up. When large enough to handle, prick the seedlings out into individual pots. If growth is sufficient, it is possible to plant them out into their permanent positions in the summer, otherwise keep them in pots outdoors and plant them out in the spring. If you have sufficient quantity of seed, it can be sown thinly in an outdoor seed bed in the spring. The seedlings can either be planted out into their permanent positions in the autumn/winter, or they can be allowed to grow on in the seed bed for a further season before planting them. Cuttings of mature wood, taken as soon as the leaves fall in autumn, outdoors in sandy soil.

Moist rich soils in woods, usually below 600 metres and within 50 km of the coast.