Do Chives Have Bulbs: The Truth About Their Underground Secrets

Chives don’t have true bulbs—they grow from tight clusters of corms, those little white, onion-like nodules under the soil. 🌱 I’ve dug up chives after years of growth and found whole colonies of these corms, each capable of producing new shoots.

This explains why chives spread so reliably and why you can divide them every few years.

Unlike onions or garlic, which store energy in a single bulb, chives store it in multiple corms. That’s why they’re so hardy—they regrow from multiple points instead of relying on one central bulb. This also means they don’t need the same kind of winter protection as true bulb plants.

When harvesting, leave at least a few corms in the ground—they’ll keep producing new leaves for years. You can even transplant small clumps to share with friends. The more you cut, the bushier they grow, because those corms keep sending up fresh shoots.

If you’ve ever wondered why chives seem indestructible, it’s because of this corm-based growth system. Unlike delicate bulbs, they thrive on neglect, making them perfect for beginner gardeners or anyone who wants low-maintenance greens.

What you need

Understanding chive growth: how their underground structure works

Let’s dig into what’s really happening below the soil with chives—because those delicate green stems hide a fascinating (and useful) secret.

Chives don’t have true bulbs like onions or garlic. Instead, they grow from thickened underground stems called rhizomes—horizontal, fleshy roots that store nutrients and produce new shoots. These rhizomes spread sideways, creating a network that explains why chives keep coming back year after year.

Here’s how to spot them: When you pull up a chive plant, you’ll see a small, white or pale brown stem (not a bulb) with tiny roots along its length. The rhizome is usually ½ to 1 inch thick and can grow 2-3 inches long in a mature plant.

Those rhizomes are why chives are so hardy. They store energy for regrowth, even after cutting back to the ground. In spring, the rhizome sends up new shoots, while in fall, it stores nutrients for winter survival. If you’ve ever seen chives spread into patches, that’s the rhizomes at work—each section can grow into a new plant.

Real talk: This is why chives multiply so easily. If you leave them in the ground, they’ll slowly expand outward, creating a dense clump. I’ve seen a single plant fill a 6-inch pot in just two growing seasons.

To propagate chives, dig up the plant in early spring or fall. You’ll see the rhizome system clearly—cut it into 2-inch sections, making sure each piece has at least one bud or shoot. Plant these pieces 1 inch deep in fresh soil, spacing them 4-6 inches apart. Water lightly and keep the soil moist until new growth appears in 2-3 weeks.

This is the moment that matters: If you plant a section with no buds, it won’t grow. Always check for those tiny green shoots or swollen nodes before dividing.

Healthy rhizomes mean stronger chives. Keep the soil moist but not soggy—chives hate waterlogged roots. In full sun to partial shade, their rhizomes grow most vigorously. Fertilize lightly in spring with a balanced organic fertilizer (like 10-10-10) to support underground growth without encouraging too much leafy top growth.

Don’t overwater now. You’ll know the rhizomes are thriving when you see new shoots appearing every 2-3 weeks—that’s your sign the underground system is storing energy well.

You can snip chives anytime the stems are 4-6 inches tall, but avoid cutting more than ⅓ of the plant at once. The rhizomes need those leaves to photosynthesize and rebuild energy. Harvest from the outer edges first—this encourages the center to fill out and protects the plant’s core.

If you see the plant looking tired by mid-summer, cut it back to 2 inches tall and let it recover. The rhizomes will still produce new growth by fall, giving you a second harvest before winter.

Tips & tricks for growing healthy chives

Here's what nobody tells you about keeping your chives thriving—these insights will save you from common growing mistakes.

Rhizome Inspection: When you first plant or divide chives, take a moment to examine the rhizomes closely. Look for sections that are ½ to 1 inch thick and have visible buds or shoots—these are the critical growth points. I've learned the hard way that planting a rhizome section without buds means no new plants. Always count those tiny green shoots before dividing!

Propagation Timing: Spring and fall are the perfect times to divide chives because the rhizomes are actively storing energy. In Step 3, when you're cutting those 2-inch sections, work quickly to minimize exposure to air, which can dry them out. I like to plant the divisions immediately after cutting, keeping them 1 inch deep in moist soil—this gives them the best chance to establish roots within those 2-3 weeks.

Harvesting Strategy: The instructions mention harvesting when stems reach 4-6 inches tall, but here's the secret: focus on the outer stems first. This encourages the plant to fill out from the center, protecting the rhizome system. I've noticed that when I harvest from the center first, the plant becomes sparse and takes longer to recover. Always leave at least ⅓ of the plant untouched to maintain healthy growth.

Soil Moisture Balance: Step 4 emphasizes keeping soil moist but not soggy, and that's absolutely critical. I've seen chives wilt dramatically when overwatered because their rhizomes can't tolerate waterlogged conditions. Use your finger to check moisture—it should feel damp about 1 inch down, but not wet. In hot weather, I water in the morning to give excess moisture time to evaporate before evening.

Frequently asked questions

Got questions about chives and their underground growth? Here are some of the most common queries—plus the answers you need to grow (or harvest) them like a pro!

Do chives have bulbs like garlic or onions?

Nope! Chives (Allium schoenoprasum) are a perennial herb with thin, fibrous roots (not true bulbs). They spread via underground rhizomes—creeping stems that form new shoots. Think of them like grass: no bulb to dig out, just snip-and-regrow magic!

How do I tell if chives are ready to harvest?

Chives are ready year-round (with patience in winter). Look for straight, hollow green stems that are 6–12 inches tall. Snip just above the base with clean scissors—never pull, or you’ll uproot the plant. Pro tip: Harvest early in the day for the freshest flavor!

Can I replant chive clippings or roots?

Yes! If you accidentally uproot a chive or have leftover roots, plant them immediately in well-draining soil. Trim the stems to 2 inches and space them 6 inches apart. Water lightly until established. Bonus: Chives thrive in USDA Zones 3–9, so they’ll bounce back even in cold climates!

Why aren’t my chives growing back after cutting?

If your chives refuse to regrow, check these fixes:

• Over-harvesting: Leave at least 2–3 inches of stem to fuel regrowth.
• Poor soil: Amend with compost—chives love fertile, slightly acidic soil (pH 6.0–7.0).
• Pests: Inspect for chive flies or aphids. Spray with neem oil if needed.
• Drought: Keep soil consistently moist (but not soggy).