Liquid Feeds for Cutting Flowers

Comfrey, nettle, seaweed — the three homemade liquid feeds that keep our patch productive with zero synthetic inputs.

If you grow flowers for cutting, your plants are working hard. Every stem you take is energy gone. That energy has to be replaced somehow — and there's no need to reach for expensive bottled feeds when the best three are freely available.

1. Comfrey — the potassium feed

Comfrey is high in potassium, which is what drives flowering and fruiting. I chop comfrey leaves into an old bucket, weigh them down with a brick, and cover. After 4–6 weeks you have a dark, properly awful-smelling concentrate that I dilute 1:10 with water.

Use on: dahlias, sweet peas, chrysanthemums — anything you want flowering its socks off.

2. Nettle — the nitrogen feed

Same principle, but nettle leaves. Nettle is high in nitrogen, so it's a leafy-growth feed. Use it early in the season and on foliage crops (eucalyptus, amaranthus).

3. Seaweed — the everything feed

Seaweed extract (or fresh seaweed if you're coastal) has the trace elements the other two miss — magnesium, iron, manganese, and a cocktail of natural growth hormones. I use a diluted seaweed feed every two weeks on everything through the season.

Tips for using liquid feeds on a cutting patch

• Feed weekly through the growing season.
• Water on moist soil, never on bone-dry beds (you'll scorch roots).
• Alternate feeds — rotate comfrey, nettle, seaweed so plants get the full nutrient spectrum.
• Wear gloves. Honestly. Nettle liquid smells like a biology experiment gone wrong.

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🎧 Listen to the podcast episode: The Cut Flower Podcast — Liquid Feeds

Want the complete no-synthetics growing system? That's what we teach inside the Seed to Vase course and the Best Bunch Membership.