Seeds & Bulbs

Growing offerings of seeds, bulbs, as well as tubers and rhizomes grown and collected from KoruKai Herb Farm, Banks Peninsula.

Grown in biological, organic, alive soil, chemical-free, synthetic fertiliser-free, herbicide-free.

Cover Crop Seeds Spring Mix

$12.90

This cover crop seeds or green manure seeds mix has been blended to achieve maximum benefit. It can help with common challenges such as compaction, weed pressure, pests and diseases, low fertility, leaching and erosion.

Best sown between August/September and December/January, depending on your climate.

This diverse mix maintains living soil cover in areas that would otherwise be bare. This mix contains seeds from 8 plant families as well as legumes (nitrogen fixing plants), which has been proven in field trials to be very beneficial to build soil structure and to increase beneficial microbes in the soil.

For autumn sowing please see our Autumn Mix.

Sowing rate: 25g per m2

Available in 500g (for 20 m2), 1kg (for 40 m2), 10kg (for 400 m2), 20kg (for 800 m2). Please select below.

Egyptian Walking Onions

$14.90 $13.90 -$1.00

Egyptian Walking Onions are a hardy, perennial “plant once and harvest for years” onion that keeps on giving season after season. Also known as Tree Onions, Top Onions, or Winter Onions, they produce edible greens, small bulbs, and unique bulbils that replant themselves naturally—walking their way across your garden.

Incredibly easy to grow and highly productive, these resilient onions multiply year after year, making them a must-have for any edible garden, food forest, or self-sufficiency setup.

1 bag contains 10 bulbils/topsets.

Cover Crop Seeds Autumn Mix

$12.90

This cover crop seeds or green manure seeds mix has been blended to achieve maximum benefit. It can help with common challenges such as compaction, weed pressure, pests and diseases, low fertility, leaching and erosion.

Best sown between January/February and April/May, depending on your climate.
This diverse mix maintains living soil cover in areas that would otherwise be bare over winter. This mix contains seeds from 5 plant families as well as legumes (nitrogen fixing plants), which has been proven in field trials to be very beneficial to build soil structure and to increase beneficial microbes in the soil.

For spring sowing please see our Spring Mix.

Sowing rate: 25g per m2

Available in 500g (for 20 m2), 1kg (for 40 m2), 10kg (for 400 m2), 20kg (for 800 m2). Please select below.

Calendula seeds

$4.90

Calendula (Calendula officinalis) seeds from our specially selected KoruKai Herb Farm collection.

Over many seasons, we have carefully selected and bred these plants for their vibrant deep-orange colour and large flower heads. Beautiful in the garden and excellent for making rich, nourishing calendula-infused oils and herbal preparations.

Tomato Tangella seeds

$4.90

This is our favourite tomato to eat raw and for salads. Low in acidity and great flavour.

It produces orange, medium sized and round tomatoes.

This orange tomato contains higher levels of Tetra-cis-lycopene which is easily absorbed in the raw fruit and helps to promote health and fight against cancer and heart disease.

Chinese Artichokes / Crosnes

$12.90

Chinese Artichoke / Crosnes (Stachys affinis)
Family: Lamiaceae

Chinese Artichokes, also known as Crosnes, are a delicious and unusual perennial root vegetable grown for their crisp, spiralled white tubers. Easy to grow and highly productive, they return year after year, producing abundant harvests from late autumn through winter.

The distinctive tubers resemble tiny grubs but are a gourmet delicacy with a wonderfully unique texture. Eaten raw, they are crisp, juicy, and slightly sweet, with a flavour reminiscent of water chestnuts. Cooked, they become tender, creamy, and subtly nutty, somewhere between a young potato, kūmara, and Jerusalem artichoke. In France, where they are known as Crosnes, they are traditionally braised in butter and fresh herbs—a simple preparation that beautifully highlights their delicate flavour.

Your order includes a starter pack of approximately five healthy tubers, ready for planting. Once established, the plants gradually multiply underground, providing increasingly generous harvests each year.

Chinese Artichokes are hardy, frost tolerant, and winter dormant, making them an excellent perennial vegetable for New Zealand gardens. Growing instructions, harvesting advice, and culinary tips are provided below.

Jerusalem Artichokes

$10.90

Jerusalem Artichoke (Helianthus tuberosus)
Also known as Sunchoke or Sunroot

Jerusalem Artichoke is a hardy, highly productive perennial sunflower grown for its crisp, sweet, and nutritious underground tubers. Easy to grow and remarkably resilient, it produces abundant harvests year after year with very little maintenance, making it an excellent addition to kitchen gardens, food forests, and permaculture systems.

The tubers can be enjoyed raw, roasted, sautéed, mashed, or added to soups and stews. Their flavour is often described as a cross between water chestnuts, potato, and artichoke, with a pleasant nutty sweetness.

Each order contains three healthy planting tubers. Choose either three small or three large tubers using the options below.

Growing instructions, harvesting advice, and culinary uses can be found below.

Seed Garlic

$14.90
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Available again in March/April 2027 — please sign up below to join the waiting list.

White Southern Softneck is a vigorous, reliable, and historically significant garlic variety that rewards growers with beautiful bulbs, excellent flavour, and strong garden performance year after year.

Organically grown at KoruKai Herb Farm, Banks Peninsula, New Zealand.

Our seed garlic is grown without chemical fertilisers, pesticides, herbicides, or fungicides, producing strong, healthy cloves ideal for home gardens and small-scale growing.

Demand for our organic seed garlic is high every year and stock always sells out quickly.

Each bag contains 10 seed garlic cloves as pictured. Please read the growing and storage information below and store cloves in a cool, dry place until planting time.

Elephant Garlic

$14.90
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Available again in March/April 2027. Please sign up below to join the waiting list.

Elephant Garlic (Allium ampeloprasum)
Family: Alliaceae

Elephant Garlic is becoming increasingly popular for its large bulbs and mild, distinctive flavour. Easier to grow than true garlic, it produces reliable crops in a wide range of home gardens and is well suited to New Zealand conditions.

Each pack contains 3 seed cloves.

Organically grown at KoruKai Herb Farm without the use of chemical fertilisers, pesticides, herbicides, or fungicides.

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