Chives are the most forgiving perennial herb: a clump planted once gives onion-flavoured leaves for years, with pretty purple flowers in spring that bees love. From seed they are slow to establish — 14–21 days to germinate and a full season before the clump amounts to much — but starting indoors 6–8 weeks before last frost gets you a usable clump a year sooner than direct sowing.

They are best started indoors, under cover, and planted out once the weather is right.

Chives at a glance

Growing factor What this crop needs
Days to germination 14–21
Sowing method both
Days to maturity 60–90
Soil pH 6.0–7.0
Spacing 6–8 inches
Sun full sun
Cold tolerance hardy

When to start Chives seeds indoors

Start Chives indoors 6–8 weeks before your last frost. Sow too early and you get leggy, root-bound plants; sow too late and you lose weeks of the season. Start chives indoors 6–8 weeks before your last frost. In Zones 3–5 the indoor start gives plants a full first season; in Zones 6–7 the same timing works, with clumps dividing well in year two; in Zones 8–9 chives grow nearly year-round; in frost-free Zones 10–13 they are evergreen but appreciate afternoon shade. Chives are hardy and perennial, so the indoor start is about establishment, not frost protection — sow several seeds per cell and plant out in clumps, not single seedlings. Your local extension service can advise on local timing.

Zones 3–5: count back 6–8 weeks from your last frost and sow under lights. Zones 6–7: the same lead time. Zones 8–9: the window opens earlier, and autumn sowing is often possible. Zones 10–13 are frost-free, so sow in the cooler months and let heat set the calendar. Use the frost-date calculator and the seed-starting calculator for your dates, and check your local extension service when in doubt.

What you need

You do not need much: fine, sterile seed-starting mix (not garden soil), cell trays or small pots, a tray to catch water, a spray bottle or fine watering can, labels and a marker, and a clear lid or cling film to hold humidity until germination. A grow light is the one item that transforms results — a sunny windowsill can work, but lights give stocky seedlings instead of leggy ones. The grow-light calculator helps size a light for your setup, and the seed-spacing calculator shows how many plants fit your beds at 6–8-inch spacing. Check old packets with the seed-viability checker.

Step by step: starting Chives seeds indoors

Chives can be direct-sown or started indoors — both work. Indoor starting wins when you want an earlier crop, even germination, or protection from slugs and cold soil.

  1. Fill your containers. Use cell trays, small pots or soil blocks of fine, sterile seed-starting mix — not garden soil, which is too heavy and can carry damping-off fungi. Dampen the mix before sowing.
  2. Sow at the right depth. Sow seed ¼ inch deep. Chives germinate in 14–21 days, and depth matters — too deep and seed rots before it emerges.
  3. Label everything. Write the variety and date on every tray. In three weeks, when the trays look identical, you will be glad you did.
  4. Cover and keep moist. Cover with a clear lid or cling film to hold humidity. Ventilate daily once sprouts appear, and remove the cover within a day or two.
  5. Give light immediately. The moment seedlings emerge, move them under a grow light 2–4 inches above, or to the sunniest windowsill. Seedlings left in dim light go leggy within days.
  6. Thin to one per cell. Snip weaker seedlings at soil level rather than pulling them, which disturbs the keeper's roots. Final spacing outdoors is 6–8 inches.
  7. Feed lightly. Once true leaves appear, feed at quarter-strength once a week. Seed compost has almost no nutrients, and hungry seedlings turn yellow and stall.

You can also direct sow Chives once soil is workable. Check old packets with the seed-viability checker.

Light for seedlings

Light separates stocky seedlings from leggy ones. Give Chives seedlings 14–16 hours of light a day, with the source just 2–4 inches above the plants — raise it as they grow. A south-facing windowsill can work in spring, but turn trays daily or seedlings lean towards the glass, and on cloudy weeks even a good window is not enough. Our sunlight calculator tells you how much direct sun a spot gets, and the grow-light calculator helps size a light. If seedlings stretch, the light is not close or bright enough.

Watering seedlings

Seedlings want steady moisture, not wet feet. Water from below where possible — stand the tray in a shallow dish for ten minutes and let the compost wick it up — because overhead watering knocks tiny seedlings flat and keeps stems wet, which invites damping off. Check trays daily, since seed compost dries fast under lights, and Chives have moderate water needs — keep the compost evenly moist but never soggy. Mist the surface lightly after sowing until germination, then switch to bottom watering. As transplanting approaches, let compost dry slightly more between waterings to toughen seedlings up.

Hardening off

Hardening off is the week that decides whether seedlings thrive or sulk. Over 7–10 days before transplanting, put trays outside for a few hours a day in a sheltered spot, increasing time, sun and wind exposure each day, and bring them back in at night. Start with shade and still air; end with a full day outside if temperatures allow. Seedlings that go straight from a warm room to open ground get sunscald, windburn or a cold check that sets them back for weeks. Chives are hardy — it tolerates light frost, so it can go outside earlier than tender crops. Do not rush this step, and bring trays in if frost threatens.

Transplanting outdoors

Transplant on a cloudy day or in the evening, when the sun will not immediately stress seedlings. Water the trays an hour before, dig holes at the final spacing of 6–8 inches, and set each seedling at the same depth it was growing. Firm soil gently around the roots, water each plant in well, and mulch around (not against) the stems. Good companions for Chives include tomatoes, peppers, marigolds, cabbage. Watch for aphids, slugs, cutworms in the first weeks — the pest-identifier helper can help name anything you find. Water daily for the first week while roots establish.

Common problems and fixes

Problem Likely cause Fix
Slow, patchy germination Normal — chives take 14–21 days Sow thickly; keep compost moist; be patient.
Thin, grass-like seedlings Too little light Strong light close above; trim tops to thicken growth.
Damping off Wet compost Bottom-water and ventilate.
Clumps not establishing Planted singly or too late Plant in clumps; start 6–8 weeks before last frost.

Slow, patchy germination

Normal — chives take 14–21 days is the usual culprit. Sow thickly; keep compost moist; be patient. If badly affected, re-sow — a fresh sowing usually overtakes a struggling seedling within two weeks.

Thin, grass-like seedlings

Too little light is the usual culprit. Strong light close above; trim tops to thicken growth. If badly affected, re-sow — a fresh sowing usually overtakes a struggling seedling within two weeks.

Damping off

Wet compost is the usual culprit. Bottom-water and ventilate. If badly affected, re-sow — a fresh sowing usually overtakes a struggling seedling within two weeks.

Frequently asked questions

How long do chives take to germinate?

About 14–21 days. Sow several seeds per cell — germination is uneven and clumps establish better.

Are chives perennial?

Yes — a hardy perennial. One clump lasts for years and can be divided every 2–3 years.

When can I start cutting chives?

Lightly in the first year once plants are 60–90 days old; properly from the second year, when the clump is established.

Should I plant chives singly or in clumps?

In clumps — sow 5–8 seeds per cell and plant the whole clump out together, 6–8 inches apart.

Do chive flowers matter?

They are edible and attract pollinators, but deadhead them if you want leaves rather than seed — chives self-sow freely.

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