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Pinching Back Plants

Pinching Back Plants - Nature Hills Nursery

Nature Hills Nursery |

Pinching back sounds like it would hurt, doesn't it? Remember getting pinched when you were younger and it either meant you weren’t wearing green at St. Paddy’s Day or meant you had done something to deserve it. Often it involved sore cheeks after your visit with an overly-doting aunt.

After all this, you probably don’t want to think about pinching again! But pinching is actually beneficial for plants!

As counterintuitive as pinching plants sounds, pinching is a pruning technique that encourages branching and bushiness! While it may seem like you are hurting or stunting your plants, making you wait a bit longer for your plants to flower, but the results are nothing short of amazing!

Reasons To Pinch

8 Reasons to Pinch

1. Many annual and perennial plants will be encouraged to grow into more compact domed forms, produce more flowers, and stay smaller.

2. Older plants benefit from pinching to reduce size when they become leggy, and even produce more foliage!

3. You can also pinch off side growth to encourage primary flowering stems to grow and have the plant put all its energy into that single bloom, making it larger and stronger.

4. This pruning style l helps the plant to put out energy on new growth or stop growing and instead produce flowers depending on the timing of the pruning.

5. Many foliage plants do better when they don’t flower, plants such as Coleus for instance, and you really want a nice compact plant with lots and lots of foliage!

6. You can also delay flowering by pinching, either because of some unexpected bad weather approaching, or to time the flowering to align up with other plants in your container garden or garden beds!

7. Nipping off those blooms early also keeps plants from bolting!

8. You can also pinch back plants after they have flowered and want to encourage rebloom or discourage seeds.

Plants That Benefit From Pinching

These perennials and annuals grow fuller, more compact, and flower more profusely when pinched at a young age.

Perennials

Aster Close-Up

Creating tighter mounds and dense, domed clumps with shorter, more even growth, or for taller flowers, you’ll get bigger blooms by eliminating side shoots and smaller flowers forming along the main flowering stem.

  • Asters
  • Chrysanthemums
  • Dahlia
  • Sedum
  • Delphinium
  • Foxglove
  • Scabiosa
  • Hollyhock
  • Geraniums
  • Salvia & Russian Sage
  • Tall Garden Phlox

Annuals, Herbs & Vegetables

For annual plants, pinch the first year to keep them from bolting, hold off flowering in some types of foliage plants, as well as the many other perks that pruning brings. For Herbs and lettuce for instance, nipping them back creates more leaves and you can toss these pruned bits into your soup, salads, or dried and ground for later use!

For Tomatoes, you want to also nip out the suckers that form in the branching notches (the ‘V’ or ‘axil’ between the branches) and you can pinch back the tops to encourage the energy going into the fruit and existing branches once they reach the desired height.

Watering Can
  • Vegetable plants like Peppers, Tomatoes, Lettuce, Broccoli, Greens, and Potatoes
  • Bedding Plants - Marigold, Coleus, Petunia, Snapdragons, Zinnia, Cosmos, Phlox, Celosia, Begonia, and Annual Geranium/Scented Geranium
  • Tall Plants that usually only have 1 flower - Don’t want 10-foot-tall single Sunflowers? Pinching causes them to stay shorter and produce multiple smaller blooms!
  • Many Herbs - Like Basil, Oregano, Mints, Rosemary, Thymes, Tarragon, and Sage
  • Brambles can sometimes benefit from tip pruning depending on the variety. It can make them easier to pick by eliminating thorny non-fruiting ends

Pine trees benefit from a form of pinching called ‘Candling’.

How to Pinch Back Plants

To pinch back, you will want to make sure that the plant is at least 2-4 inches tall, or at least 3-4 sets of leaves. While it seems harsh, you will be removing up to a third of the leaves/growth.

You can literally pinch back plants using your fingers and fingernails, or you can use small sterile scissors or garden snips if you are wearing garden gloves or want to save your manicure.

Gardening Scissors

For bushiness and increased flowering, nip back your plant stems by a third down to just above a leaf node along the stem. Soon new shoots will develop on either side of the cut stem. If you can resist waiting for flowers, you can wait until 3-4 new leaf sets have grown on these new shoots and pinch them back again for a denser, bushier plant!

To encourage a single flower to grow larger and more prominently, limiting side shoots and reducing smaller flowers that may form along the stem. This pushes all the plant's energy into the main stem and flower.

Pinch back suckers and side shoots that you don’t want sapping energy from the main plant at any time.

Water your plants well and wait to fertilize until you see those new buds forming.

Once those blooms begin to fade, pinch back the old flowers back to a leaf node and watch as new blooms quickly replace the old! Even if your plants don’t rebloom, deadheading forces the plant to put its energy into its roots for next year instead of seed or fruit.

This also prevents self-seeding and cleans up the entire plant.

Even If They’re Wearing Green, Pinch Them!

So don’t feel bad about pinching and instead have some fun and holler “Off with their heads!” while you are working in the garden! (You may want to whisper it if the neighbors are a bit judgemental.)

It will be a meditative and fulfilling, productive and enjoyable practice while spending time in the garden! It’s also a great chore for small hands and gets the kids involved in the great outdoors!

Happy Planting!

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Frequently Asked Questions

How do you pinch back a plant correctly?

To pinch back a plant, use your thumb and forefinger to pinch off the soft growing tip of a stem, removing the top inch or two just above a leaf node or set of leaves. This signals the plant to send energy into the side buds below the cut, resulting in two or more new stems and a fuller, bushier form. For best results, begin pinching young plants early in the season when stems are still soft and pliable, and repeat the process every few weeks until midsummer to keep plants compact and blooming strong.

When should you start pinching back plants in the growing season?

The best time to start pinching back most annuals and perennials is in early spring when new growth is actively emerging and plants are young and vigorous. For mums and asters, a common guideline is to begin pinching when plants reach about 6 inches tall, continuing every few weeks until midsummer, typically around the Fourth of July, to ensure blooms form on time for fall. Starting early in the season gives plants the maximum amount of time to branch out, fill in, and set buds before their natural flowering window arrives. Begin pinching as soon as your plants have enough new growth to work with, and stop pinching roughly 6 to 8 weeks before you want blooms to appear.

Which plants benefit most from being pinched back?

Pinching back is most effective on fast-growing annuals and perennials that tend toward leggy or sprawling growth. Perennials like asters, chrysanthemums, dahlias, sedum, delphiniums, foxglove, tall garden phlox, geraniums, and salvias all respond exceptionally well, producing fuller, more compact forms and more prolific blooms. Foliage plants like coleus also benefit greatly from pinching, as removing flower buds keeps the plant focused on producing lush, dense foliage rather than going to seed. Start pinching young plants early in the growing season to shape their growth habit and encourage branching before flowers begin to form.

How far back should you pinch a plant stem?

When pinching back a plant stem, remove just the very tip of the stem, typically the top 1 to 2 inches, cutting or pinching just above a leaf node or set of leaves. This encourages the plant to branch out from that node rather than continuing to grow in a single direction. Use clean fingers or sharp pruners to make a precise cut, and aim to pinch young stems when they reach about 6 inches in length for the best results.

How does pinching back plants encourage bushier growth?

Pinching back plants removes the growing tip of a stem, which interrupts the plant's natural tendency to grow upward and signals it to push energy into lateral branching instead. This results in more stems, more foliage, and ultimately more flower buds than an unpinched plant would produce. For best results, begin pinching young plants early in the season when stems are just a few inches tall, and repeat the process every few weeks until midsummer to maintain a compact, bushy habit.

Should you pinch back plants more than once during the season?

Yes, many plants benefit from multiple pinching sessions throughout the growing season. Perennials like chrysanthemums and asters are commonly pinched two to three times before midsummer, stopping around July 4th in most zones to allow enough time for buds to set before fall. Each round of pinching encourages additional branching and a more compact, floriferous plant. Continue pinching every few weeks on fast-growing annuals and foliage plants like coleus until the plant reaches your desired shape and size.

How do you pinch back flowers to promote more blooms?

Pinching back flowers is simple: use your thumb and forefinger to remove the growing tip of a stem, just above a leaf node or set of leaves, taking off roughly the top inch or two of new growth. This signals the plant to push out multiple new stems from below the pinch point, resulting in a bushier plant with far more blooms. For best results, pinch young plants early in the season before they set flower buds, and repeat the process two or three times as new growth emerges. For plants like chrysanthemums, asters, and dahlias, continue pinching until midsummer, then let the plant grow on to produce a full flush of flowers in fall.

Can pinching back a plant cause damage if done incorrectly?

Pinching back plants is generally a low-risk technique, but improper timing or over-pinching can delay flowering or stress the plant. Avoid pinching too late in the season, as this can prevent plants from forming buds before the first frost, particularly for perennials like chrysanthemums and asters, which should not be pinched after midsummer. Always use clean fingers or sharp, sanitized shears to remove only the soft growing tip, taking just the top inch or two of new growth. Pinch early and lightly during the active growing season for the best results without compromising the plant's health.

What tools do you need to pinch back plants properly?

One of the great things about pinching back plants is that you need very little equipment to do it properly. In most cases, your thumb and forefinger are all you need to pinch off soft, young growth at the tips of stems. For tougher or woodier stems, a pair of clean, sharp pruning shears or scissors will give you a cleaner cut and reduce the risk of disease. Keep your tools sanitized between plants to avoid spreading any potential issues through your garden.

How do you know when a plant needs to be pinched back?

There are a few clear signs that a plant is ready for pinching: stems are getting leggy or stretched out, the plant is producing fewer blooms than expected, or it has simply outgrown its space. For most annuals and perennials like chrysanthemums, asters, and salvias, pinching is most effective when plants reach 6 to 12 inches tall in early to mid-spring. If you want to delay flowering or encourage rebloom, pinch after the first flush of flowers fades. When in doubt, pinch early in the growing season to give plants plenty of time to branch out and fill in before their peak bloom period.