What Do I Do With the Flower Heads on Flat-Leafed Parsley? (2024)

By Vanessa Salvia Updated September 30, 2020

Flat-leaf parsley or Italian parsley (Petroselinum crispum) is a popular culinary herb that is grown in many gardens. The parsley plant is a cold-tolerant herb that is slow to start, but parsley bolting is also common in the first year of growth (although that is different than parsley going to seed at the end of its life cycle). Parsley can be seeded outdoors three to four weeks before the last frost and is hardy in U.S. Department of Agriculture plant hardiness zones 5 to 9.

Tip

The parsley plant is edible from top to roots. When its flower heads form, they can be harvested and eaten along with the rest of the plant, or they can be saved for seeds.

Life Cycle of Parsley

Flat-leaf parsley or Italian parsley is a biennial herb, meaning that its growth cycle lasts for two years. However, most gardeners grow it as an annual because the plants often die during cold winters. The New York Botanical Garden says parsley is considered tricky to get off to a good growing start. Growers will see best results by soaking the seeds for up to 24 hours in 75-degree-Fahrenheit warm water before sowing. Plant the seeds 1/2 to 2 inches apart and 1/4 inch deep in rows that are 2 feet apart in the garden bed.

If many seeds sprout, thin the germinated plants later. Seeds can be sown directly in the ground in late spring without the additional step of soaking, but unsoaked seeds can take four to six weeks longer to germinate. Parsley can also be started indoors eight to 10 weeks before the last frost in your area. If you do this, move the plants into the garden in late spring when the seedlings are 2 to 3 inches high. Starting seeds indoors has advantages because you may continue to sow seeds throughout the growing season from April to November to provide fresh leaves.

The parsley plant can be harvested continuously throughout the growing season by cutting the outer leaves 1 to 3 inches above the crown, which will in turn encourage new plant growth. If you leave parsley in the garden after a mild winter during the first year of growth, it may return to life in the spring. In the second year, you will see parsley bolting, meaning it will form flower heads. If you leave the flower heads on the parsley plant, the seeds can be saved for sowing next year.

Parsley Going to Seed

There is a difference between parsley bolting and parsley going to seed. When the flower heads form in the second year of the parsley plant's life, that signals that its growth cycle is nearly over. The flower heads will turn into seeds. The University of Maryland Extension explains that parsley bolting is when the plant flowers and goes to seed prematurely. When parsley bolts, it bolts within the first year of growth. This often occurs due to unfavorable growing conditions and especially high temperatures.

The University of Minnesota Extension says that second-year parsley is more bitter than the first year's growth. However, parsley plant leaves can be harvested at any time from the first growth until the second year when the plant sends up its seed stalk.

The Center for Food Safety recommends harvesting parsley seeds by removing the seed heads when they have turned brown. Carefully remove the seed heads without shaking them (or you'll lose the seeds) and place the seed heads in a paper bag. You can also hang the head of the parsley plant over a cloth for the same results (the seeds will fall to the cloth as they dry).

More Uses for Parsley Flower

Parsley is one of the most useful and widely grown culinary herbs. The entire parsley plant, thick stalks included, is edible. When the plant flowers, you can use the flowers in the same way as the leaves. Use the flowers as a garnish or mix them into your pesto, tabbouleh, tzatziki, salsa verde or chimichurri recipe just as you would the leaves.

With parsley, thick stalks may be ground into pesto in a food processor or saved in a bag in the freezer for vegetable stock. For a decorative use of the parsley flowers before they turn brown and begin producing seeds, roll out the flowers into fresh pasta dough so their flowery outline is still visible. The New York Botanical Garden says that even if a recipe just calls for parsley leaves, the stems are just as flavorful and can be used as well. Finely chop them and add them to broth, stews or other dishes.

What Do I Do With the Flower Heads on Flat-Leafed Parsley? (2024)

FAQs

Should I let my parsley plant flower? ›

Leave the inner stalks and leaves, so the plant can keep growing. The second year, the leaves will be sparse and may be less flavor-intense. You may use them, but you may also let the parsley bloom. Bees love the blossoms.

Why is my flat leaf parsley flowering? ›

Bolting usually occurs when the weather goes into overdrive and rapidly heats up. The plant does the same, flowering rapidly and setting seeds. At this juncture, the plant also stops producing leaves.

What do you do with bolting parsley? ›

For plants like parsley, you can cut the flower stalk off and pinch back the plant to encourage foliage growth. The same goes for basil. Snipping off flowers encourages the basil plant to resume producing leaves, halting further bolting.

What do you do with parsley after flowering? ›

Cut off your parsley's flowers for a bouquet, pull it out, toss it in the compost and start over. Parsley grows quickly from seed, or, even faster, buy inexpensive little parsley plants from the nursery. You'll be pleased with how fresh the young leaves taste, and they'll grow in rapidly.

Can you harvest parsley after it flowers? ›

Can I harvest parsley after it flowers? Once it flowers, the leaves won't taste as good. So it's best to harvest the entire plant when parsley it starts to bolt. You can cut it at the base to collect all of the remaining stems at once, or pull the whole plant out of the ground before cutting them off.

What do you do when flat-leaf parsley goes to seed? ›

You may like to remove the old parsley plant as this will give you the opportunity to add some compost or blood and bone to the soil prior to replanting. Some seed will emerge from your own seeded parsley plant and extra seed can be sown. Once the seeds have germinated apply some Yates Yates Thrive Natural.

Does flat-leaf parsley come back every year? ›

Parsley is a biennial, not a perennial. What that means is that it grows into a plant one season, and after winter's cold temperatures, it blooms, sets seeds, and dies. The better idea may be to replant in spring, letting it grow all summer and winter.

Why is my parsley only growing flowers? ›

Heat. The heat of summer will trigger parsley to bolt, and if the summer is very warm, the plant is likely to produce flowers earlier than usual. Pinching off the flower buds as soon as they appear can help to lengthen parsley's growing season and give you leaves to harvest for several more weeks.

Can you eat parsley after it has bolted? ›

Parsley bolts, but that doesn't affect the flavor of the leaves, so you can let parsley go to seed. The seeds do overwinter, so you can have more parsley next year. The parsley flower is ugly, but edible.

Should I let my herbs flower? ›

Herb plants grow lovely flowers. Although many have edible blossoms, it is not a good idea to allow your herb to flower early in the growing season. Once a plant flowers, this is the signal that its life cycle is about to end. Your herb is making a flower, then a seed, then it dies back for that season.

What does parsley look like when it's ready to harvest? ›

Harvesting Parsley for Leaves

Check the plant to make sure that stems have three segments or more. If you find three or more leaf clusters on the stem, it is ready for harvesting. Otherwise, it's best to let it grow for a few more days before you start harvesting.

Why do chefs prefer flat-leaf parsley? ›

"Flat leaf tends to be easier to control, and it isn't as tough," says Jason Potanovich, chef instructor of the American Bounty restaurant at the Culinary Institute of America in Hyde Park, N.Y.. "It became a trend—flat-leaf parsley made an entrance, and curly got left in the dust."

Do you use the stalks of flat-leaf parsley? ›

You can eat the stems of parsley, but they are much more bitter than the leaves, so I recommend just using the leaves for most recipes. By placing all stems together, you can easily remove them in one quick cut.

Will flat leaf parsley survive winter? ›

Mint, parsley and rosemary are all hardy plants that will survive even in the snow. However, cold weather will reduce their growth, so you should limit the harvest. If you take too much, the plant may die. Make sure your pots have good drainage – waterlogged roots will rot and die.

Will parsley reseed itself? ›

Native to Mediterranean Europe, the parsley plant is a biennial, but is usually grown as an annual in home gardens. After the first year, the leaves tend to become more bitter and tough, but the plant will gladly reseed itself in temperate zones.

Can you freeze flat leaved parsley? ›

If you need to keep your parsley longer than 3–5 days, freezing it is your best option. The herbs won't be sprightly enough to work as a garnish, but they'll definitely work when stirred into an herb sauce, a pan of scrambled eggs, or a pot of beans.

Where do you cut parsley when harvesting? ›

Harvesting parsley is very similar to harvesting lettuces or greens. You're going to start with the lower leaves from the outside of the plant. Cut at the base of the plant to include the stem (instead of just cutting the leaves) in order to stimulate more growth from the center of the plant.

Should I pinch back parsley? ›

Parsley grows best when cut back on the inner stems.

If you don't take part of the stem, then the stem will dry out and won't regrow and you want your plant to keep growing all season long. If you do just pinch off a leaf, it will dry in just a few days, so go ahead and trim that stem down.

Who should not eat parsley? ›

Parsley contains chemicals that can make kidney disease worse. Surgery: Parsley might lower blood glucose levels and could interfere with blood sugar control during and after surgical procedures. Stop using parsley at least 2 weeks before a scheduled surgery.

What can you not plant near parsley? ›

4 Plants to Keep Away From Parsley
  • Alliums: Garlic, onions, shallots, and other alliums can stunt the growth of parsley.
  • Lettuce: When planted too close to lettuce, parsley can cause lettuce to bolt (go to seed) too early in the growing season.
7 Jun 2021

Is bolting the same as flowering? ›

Bolting is when plants produce a hearty, nutrient-gobbling flowering stem before harvest. This occurs as a natural attempt to produce seeds – a means of survival when a plant is put under stress and feels that it is in danger. For this reason, many gardeners will also call this dreaded behavior “going to seed”.

Can you eat parsley flowers? ›

More Uses for Parsley Flower

The entire parsley plant, thick stalks included, is edible. When the plant flowers, you can use the flowers in the same way as the leaves. Use the flowers as a garnish or mix them into your pesto, tabbouleh, tzatziki, salsa verde or chimichurri recipe just as you would the leaves.

Should herbs be cut back after flowering? ›

Once they bloom, the leaves lose their flavor. I prefer to snip off all the flower buds so that the plant lasts longer. Once the plant flowers it will start to make seeds and stop producing leaves. Cut parsley and chive stems close to the base, about an inch from the soil.

Can you dry herbs after they flower? ›

Herb flowers have their most intense oil concentration and flavor when harvested after flower buds appear but before they open. Herb flowers harvested to dry for craft purposes should be picked just before they are fully open.

Does parsley regrow after cutting? ›

Parsley is best picked as needed, cutting the stems at the base, so that new leaves grow back quickly. You may want to grow several plants so that you can harvest from one while another is left to produce new growth.

Are herbs still good after flowering? ›

Harvest flowering herbs like basil, sage and thyme before their flowers bloom. Once they bloom, the leaves lose their flavor. I prefer to snip off all the flower buds so that the plant lasts longer.

Should you let your herbs bloom? ›

Herb plants grow lovely flowers. Although many have edible blossoms, it is not a good idea to allow your herb to flower early in the growing season. Once a plant flowers, this is the signal that its life cycle is about to end. Your herb is making a flower, then a seed, then it dies back for that season.

How do you pick parsley so it keeps growing? ›

Just as with other herbs, parsley likes to be snipped, which encourages additional growth. Bunch the stems and leaves together and snip them off at ground level with kitchen shears. You can also just take a sprig or two starting with the outside stalks first. Be sure to cut at ground level though.

How do you harvest flat parsley without killing the plant? ›

How do you harvest parsley without killing the plant? Simple—just take what you need each time you harvest. Don't cut the plant all the way back, and don't pull the plant—just snip off a stem or two or three, and your plant will keep producing parsley all season long.

What to do with bolting herbs? ›

Once a plant begins to bolt, there's not much you can do. Cutting off the flowers won't do any good, so it's better to just let them go to seed. Bolted greens are still totally edible (and even healthy for you, Segale says—throw a leaf in your tea!), but they will have a more bitter taste.

Can you eat flowering herbs? ›

Most herb flowers are safe to eat and generally taste like the herb leaves. Remember, when an herb is flowering, it sends a lot of its essential oils into the bloom to attract pollinators—so even small, tiny florets or little flowers can be strong in flavor.

Do you have to hang herbs to dry them? ›

Tie them into small bundles and hang them to air dry. Air drying outdoors is often possible; however, better color and flavor retention usually results from drying indoors. Tender-Leaf Herbs — Basil, oregano, tarragon, lemon balm and the mints have a high moisture content and will mold if not dried quickly.

Should I water my herb garden every day? ›

A good rule of thumb for most herbs is to water about once per week. During extreme heat or drought conditions, sometimes twice per week will be needed. Water in the cooler hours of the morning, between 6 – 10 am, to avoid evaporation and allow for deep root soaking.

Which herbs should not be allowed to flower? ›

For producers, flowering of culinary herbs such as basil, cilantro, mint, oregano and watercress is usually undesirable, since vegetative growth can stall once flower initiation occurs.

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