Herbs

8 Tips to Propagate Herbs Like a Pro for Fresher Ingredients All Winter

Winter may feel more like a month of hibernation, but it's perfectly possible to enjoy gardening and see a few green shoots well before spring rolls around. One of the best ways to do this is by propagating and growing....

herbs indoors.

Whether you're interested in growing basil for your favorite dishes or would like the calming fragrance of lavender in your home, we spoke with two gardening experts to get their best advice on propagating herbs during winter.

Meet the Expert
Ren Elizabeth is the steward of a 5-acre homestead, and the author of the educational blog ecofriendlyhomestead.com, where she shares information on environmentally sustainable ways to grow food.
Kim Butler is a master gardener based in Central Florida who educates others about all things urban homesteading and growing her own food and herbs.
Use Softwood Cuttings
First, you're going to need cuttings to get your indoor herb garden started.

"For herbs like basil, thyme and oregano, I would recommend to use softwood cuttings, not hard, so that one can actually succeed at getting those plants started," says master gardener Kim Butler.

The same can be said for lavender and rosemary. If you don't already have cuttings, it's better to wait for spring.

"They don't propagate well from hardwood cuttings, which is usually all that's available in the winter months," says gardening expert Ren Elizabeth.

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Keep Your Cuttings Warm
You're not the only one who appreciates a cozy home during winter—your herb cuttings will love and thrive in this kind of environment, too.

"Herbs develop roots a lot faster if they are kept around 70ºF," Elizabeth says.

To maintain this temperature, she suggests using a heat mat, or putting them near your radiator or wood stove. Not only does this give your plants a better chance of survival but it cuts down on the possibility of rotting, too.

Be a Mindful Propagator
Some herbs are easier to grow than others, and practice makes perfect, as does knowing certain plant behaviors. Even the simplest herbs to grow can have their fair share of challenges—like mint.

While you may want to move these herbs outside come springtime, Elizabeth warns against putting mint to raised beds or directly into the ground.

"It really will take over and it is really difficult to stop its spread," Elizabeth says.

The best way to keep herbs in check is to do your research.

Invest in a Grow Light
Because winter is darker and colder than spring and summer, having a little supplementary light can help support your cuttings. Propagated herbs need the energy from a light source in order to grow and thrive, just as newly planted seeds might.

In order to support your plants, you can invest in true grow lights, or get creative like Elizabeth does.

"I use LED shop lights that I have mounted on a metal shelving unit," she explains. "While shop lights don't emit a focused light spectrum like grow lights do, they are very affordable to buy and are energy efficient."

Opt for Water Propagation
There are a few different ways you can propagate plants, but Butler recommends using a water propagation method by "placing the cuttings in a clear jar at room temperature with the leaves above the water."

It's a relatively simple way to get your herbs going and doesn't require any soil from the get-go. However, Elizabeth says to keep an eye out for algae growth. She's found that her water-bound cuttings are often prone to algae.

"In order to keep this at a minimum, I change the water a few times a week," Elizabeth says.

Add Some Honey
Part of propagating and growing herbs indoors is waiting. It takes some time to see growth and get your herbs to a point where they can be planted and harvested.

"I sometimes add honey to stimulate the process," Butler says. But she also adds that you shouldn't "use nutrients until they have properly established roots."

Stimulate Growth with Kitchen Items
Outside of store-bought rooting hormones, you can also try using aloe, cinnamon, or apple cider vinegar to stimulate growth in your plants.

Keep a System Going Year-Round
Winter propagation is totally doable, but it's smart to have a system and routine in place all year long to keep your plants healthy and keep an abundance of herbs coming in.

"[I] regularly prune them, rotate my pots, and sometimes move them outdoors for some air, and use those cuttings to start new plants," Butler says.

Elizabeth also encourages taking more cuttings than you usually would—especially for this colder season.

"By giving yourself an extra cutting or two, you're countering some of the decline in rooting rate that you'll normally experience in the winter," she says.

Know Specific Plants' Needs
While there are some general herb care guidelines, each plant has its own needs. It's smart to read up on the specific herbs you want to propagate and grow so you know how to best care for them.

For example, Elizabeth notes that oregano is hardy and "does well being propagated by division nearly year-round."

Thyme, on the other hand, does best when it's layered under dirt in the soil. Knowing what different herbs like will lead to far more success when creating your own herb garden this winter.