Herb · Apiaceae
Chervil
Anthriscus cerefolium
Give it cool air, gentle shade, and steady water, and chervil pays you back with lacy, tender leaves.
Partial shade
Every 2–4 days
39–75°F · 4–24°C
40–60 days
Overview
Chervil (Anthriscus cerefolium) is a delicate culinary herb in the same family as carrot and parsley, the Apiaceae. Its fine, fern-like leaves carry a soft flavor that whispers of parsley with a hint of anise, and it sits at the heart of French cooking and the classic fines herbes blend. You may also see it called French parsley, garden chervil, or cerfeuil.
This is a fast-growing, cool-season annual that lives out its whole life in a single season. That quick pace is good news for a first-time grower: a crop is ready before long, and if one sowing stumbles, the next is never far behind. Warmth is its weak spot, since heat pushes it to bolt, sending up flower stalks while the leaves turn bitter.
Here is the part that makes chervil so kind to beginners: it is one of the rare herbs that genuinely welcomes shade, thriving where sun-lovers sulk. A pot on a cool windowsill or a partly shaded bed suits it well. Give it steady moisture and a few small successive sowings, and it asks for little else.
Care
The short version: chervil is a forgiving cool-season herb that asks for shade, evenly moist soil, and a temperature between 39°F and 75°F (4°C to 24°C). Keep it out of harsh summer heat, scatter a fresh pinch of seed every 3 to 4 weeks, and you will have soft, fragrant leaves for the kitchen. If something goes sideways, you can almost always start again, because each crop is quick.
Light
Chervil truly likes partial shade, which sets it apart from most herbs you may have grown. It will take partial sun, and even full sun while the weather stays cool. Shade does you a favor by slowing the rush to bolt and keeping the leaves soft and tender, so a spot with afternoon shade is ideal in spring.
Water
Aim to keep the soil evenly moist and never let it dry right out, because a thirsty plant quickly runs to seed. In practice that usually means watering every 2 to 4 days, and a little more often during warm or dry spells. Stay on top of this and the leaves reward you by staying sweet rather than sharp.
Soil
Plant chervil in moist, well-drained loam and it will settle in happily. It is easygoing about fertility and copes even with poor ground, so you do not need to fuss. Keep the soil in the 6.0 to 8.0 pH range, and know that most ordinary garden soil works as long as it holds moisture without turning soggy.
Temperature
As a cool-weather plant, chervil is at its best between 39°F and 75°F (4°C to 24°C). A light frost barely troubles it, but once real heat arrives it will bolt, so think of it as a herb for the spring and fall garden rather than high summer. Plan around the cool stretches and it stays content.
Humidity
There is no humidity figure to lose sleep over here. Average humidity of 40% to 60% suits chervil just fine. What matters far more is moist soil paired with moving air, which keeps the fine, lacy foliage clean and healthy.
Feeding
Go gently, because chervil needs very little feeding. A light, balanced organic feed worked into the soil at planting time in spring is all it really wants, and it does perfectly well in poor ground. Resist the urge to overfeed, since heavy feeding does harm and tends to invite aphids.
Pruning
As soon as flower stalks start to form, pinch them out to put off bolting and keep tender leaves coming. It also pays to harvest the outer leaves often, which nudges fresh growth from the center and keeps the plant productive for longer. Both jobs are quick and very hard to get wrong.
Repotting
not_applicable
Size & spacing
Chervil stays nicely small, reaching 12 to 24 inches (30 to 60 cm) tall with a spread of about 12 to 18 inches (30 to 45 cm). Give each plant a little elbow room so air can move through the fine foliage and the leaves stay dry, which keeps everything looking fresh.
When to plant
Think cool, not warm. Sow straight into the ground in early spring and again as the season turns to fall, give midsummer heat a pass, and keep tucking in a little more seed every 3 to 4 weeks so there is always young, tender growth waiting for you.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: Direct-sow in early spring and again in fall; cool-season herb that bolts in summer heat, so provide shade and succession-sow every 3-4 weeks.
- Harvest: Cut tender young leaves before flowering; small white five-petaled flowers form in umbels 1-2 inches across, followed by seed.
Hardiness
USDA hardiness zones: 3–10
Temperature: down to -40°C
Troubleshooting
Almost every chervil hiccup traces back to heat or moisture, and the leaves usually tell you first. Look closely at what the plant is showing you, match it to one of the signs below, then make a small change while it can still help. None of this is hard to put right.
Sudden flower stalks and no new leaves
When the plant shoots up flower stalks and stops making tender leaves, you are seeing bolting, the classic chervil challenge. Heat and long days flip it from leaf-making to seed-making, and dry soil hurries it along. Pinch off the stalks as they show, move the plant somewhere cooler and shadier, keep the soil moist, and sow fresh seed every 3 to 4 weeks. It is a very recoverable problem.
Fix:
- Pinch off emerging flower stalks
- Move to a cooler, shadier location
- Maintain consistently moist soil
- Succession-sow fresh seed every 3-4 weeks for a continuous supply
Sticky, distorted new growth
Twisted new shoots and tiny clustered insects on the lacy leaves point to aphids, soft-bodied pests that gather on leaf undersides and leave behind sticky honeydew. A firm spray of water knocks them loose, and you simply repeat that every few days. Ease back on nitrogen feeding too, since the soft, lush growth it produces is exactly what draws them in.
Fix:
- Rinse aphids off with a strong spray of water
- Repeat as needed
Ragged holes chewed in the leaves
Holes torn through the leaves, with seedlings taking the worst of it, are usually the work of slugs and snails. Watch for silvery slime trails, and expect the damage to be heaviest after rain or overnight. Pick the culprits off by hand and tidy away damp debris and hiding places, and your young plants will get the chance they need.
Fix:
- Remove slugs and snails by hand
- Reduce moist hiding spots near plants
Toxicity
Grown for the kitchen, chervil is safe to have around people, pets, and livestock, so you can relax about a curious nibble. The one real worry lives outdoors: wild plants in its family can look almost identical and some are deadly. Only ever use a plant whose identity you are sure of.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Chervil is not toxic to cats, so a nibble of the foliage will do no harm.
Dogs None
Dogs are safe around the plant, and there are no poisons to worry about if one chews a leaf.
Horses None
Horses can graze near chervil without any risk from the herb itself.
Rabbits Safe
Rabbits can eat the leaves, and the soft, lacy foliage makes a fine occasional green for them.
Livestock Safe
Cattle, goats, and sheep all handle cultivated chervil without any trouble.
Birds Safe
Backyard birds and poultry can peck at it safely.
People Safe
This is a kitchen herb meant to be eaten, prized in French cooking for its delicate flavor. The only caution is out in the wild, where toxic lookalikes make sure identification essential.
Chervil closely resembles toxic Apiaceae lookalikes such as poison hemlock; foragers and gardeners must be absolutely certain of plant identity before harvesting wild plants.
Varieties
Seed catalogs carry just a handful of named chervil types, and the differences show up more in the shape of the leaf than in the taste. Here are the few that are genuinely worth knowing about.
Crispum
Crispum is the curled-leaf type, with tightly ruffled foliage and a subtle, mild flavor.
Vertissimo
Vertissimo is a compact, productive selection with dark green flat leaves that crops heavily even in a small space.
Plain chervil
Plain chervil is the standard flat-leaf form, the one most often grown for the kitchen.
Companions
Chervil grows well beside cool-season crops that share its taste for shade and steady moisture.
How to propagate
Chervil comes from seed and nothing else, and it holds a few firm opinions about how that seed gets handled. Follow them and you will find it wonderfully easy.
SeedModerate
Early spring and fall, in cool weather; succession-sow every 3-4 weeks · Seeds germinate in about 10 days at 60°F soil temperature; tender leaves ready to harvest in roughly 6-8 weeks
Always direct-sow chervil right where it will grow, because it forms a taproot and dislikes being moved. Scatter seed in cool weather, in early spring and again in fall, with a fresh batch every 3 to 4 weeks for a steady supply. The seeds need light to sprout, so barely cover them or leave them on the surface and keep the soil evenly moist. Expect germination in about 10 days at 60°F (16°C), with tender leaves ready in roughly 6 to 8 weeks.
Myths
Any lacy, fern-leaved wild plant is safe to use the way you would use chervil.
Please do not trust this one. Chervil's family is full of dangerous lookalikes, and poison hemlock can pass for it at a glance, so a mistake here can be fatal. Only ever use a plant whose identity you are completely certain of, and the safest path by far is to grow your own from known seed.