Nettle seeds are one of those quiet, overlooked remedies that have been growing in plain sight all along. Collected from female nettle plants in late summer, these tiny black-brown seeds have been eaten as a food in times of scarcity and herbalists have long valued them as a trophorestorative: a herb that gently nourishes and rebuilds a specific tissue or system, rather than just temporarily stimulating it. In this case, that system is your adrenals, making nettle seeds particularly useful for anyone experiencing burnout, chronic fatigue, or that wrung out feeling that comes from running on empty for too long.

The seeds contain lectins, which have an affinity for the nephrons of the kidneys. They also contain fatty acids, which generally tend to have anti-inflammatory effects, as well as helping with:

• Adrenal support: Nettle seeds are known in herbal medicine as an adrenal tonic or nourishing stimulant, working gently and steadily — without the spike and crash of caffeine — to support those with chronic fatigue, low libido, or burnout.
• Mood and focus: The seeds contain naturally occurring neurotransmitters serotonin (mood regulation) and acetylcholine (attention, alertness and memory), helping to improve focus and “zest for life”.
• Nutrient-dense: Packed with essential fatty acids, protein, and minerals including iron, magnesium, and calcium, they provide sustained physical energy rather than a quick fix.
• Easy to use: Raw, dried, or lightly toasted, nettle seeds can be sprinkled on porridge or salads, blended into smoothies, or, as in this recipe, pressed into energy balls. A teaspoon a day is a typical dose; start low, as they can be potent.

Identifying female nettle plants

To harvest nettle seeds, you first need to find the right plant. Nettles are dioecious, meaning male and female flowers grow on separate plants entirely.

Male plants tend to be slightly taller and more upright, with flowers that stick outward from the stem in stiff, branching clusters. When they release pollen, the flowers have a dusty, pale appearance. They don’t produce seeds, so once you know what to look for, you can pass them by.

Female plants are what you’re after. Their flowering clusters hang downward in long, drooping, tassel-like strings — softer and more pendulous than the male. As the seeds develop through late summer, these tassels become heavier and darker, turning from green to brown. The seeds themselves are tiny, oval, and glossy — dark brown to almost black when ripe.

Both plants sting equally well, so gloves are still essential! Harvest the seed heads when they feel slightly dry to the touch, and the seeds come away easily, usually from late August into September in the UK. Snip the whole seed head into a paper bag and leave to dry further at home before using.