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What to Do in the Garden in July

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What to Do in the Garden in July

July 5, 2021

In the garden, July is a month with a split personality: We look back wistfully (at the successes of spring) and forward with trepidation (can this garden be saved, to withstand the August heat that’s ahead).

Here are a few quick garden fixes that will pay off next month (and in September).

Clean Up the Strawberry Patch

Choose the best weapon to renovate the strawberry patch: See Garden Tools: Which Trowel or Weeder is Best for You? Photograph by Mimi Giboin.
Above: Choose the best weapon to renovate the strawberry patch: See Garden Tools: Which Trowel or Weeder is Best for You? Photograph by Mimi Giboin.

After you’ve picked the last strawberry from your plants, it’s time to cut back brown or drooping leaves. Weed between plants and mulch with an inch or two of compost. Now it the time to thin or transplant strawberries; carefully dig up runners as well as roots to move a clump to a new spot.

For more growing tips, see Strawberries: A Field Guide to Planting, Care & Design.

Deadhead

Interplanted with fuzzy-headed grass Pennisetum villosum, pink cosmos ‘Dazzler’ will keep blooming all summer if you cut back spent flowers. See more at In the Garden with Philippa: Brit Style with a Black Backdrop. Photograph by Jim Powell.
Above: Interplanted with fuzzy-headed grass Pennisetum villosum, pink cosmos ‘Dazzler’ will keep blooming all summer if you cut back spent flowers. See more at In the Garden with Philippa: Brit Style with a Black Backdrop. Photograph by Jim Powell.

Hone your deadheading technique: See Landscaping 101: How to Deadhead Flowers.

TLC for Tomatoes

It&#8\2\17;s not too late to corral tomatoes into cages, for their own good. Which is the best support for your tomato varieties? See \10 Easy Pieces: Tomato Cages.
Above: It’s not too late to corral tomatoes into cages, for their own good. Which is the best support for your tomato varieties? See 10 Easy Pieces: Tomato Cages.

I never met a tomato plant that didn’t perform better with a little coddling. Pinch back suckers to help them focus their fruiting efforts. Make sure tomatoes get enough water (from a drip irrigation system or a hose, every day).  See more tips at Tomatoes: A Field Guide to Planting, Care & Design.

Cut Back Spent Flowers

See more tips at Foxgloves: A Field Guide to Planting, Care & Design. Photograph by Britt Willoughby Dyer.
Above: See more tips at Foxgloves: A Field Guide to Planting, Care & Design. Photograph by Britt Willoughby Dyer.

Many flowering spikes—from penstemons to foxgloves to gladiolas—have finished flowering by now. Or have they? When you cut back spent blossoms, check to see if any lateral spikes are growing from the spikes. If so, leave them in place to encourage more blooms.

Add Annuals

See more at Cleome: A Field Guide to Planting, Care & Design. Photograph by Marie Viljoen.
Above: See more at Cleome: A Field Guide to Planting, Care & Design. Photograph by Marie Viljoen.

Many of our favorite flowers are annuals that cheerfully take on the job of adding color to the garden just as summer perennials start to flag in August’s heat. With bright blooms and attention-grabbing flowers, these fast growers can make you love your garden in late summer. (And many annuals will live on by resowing themselves, with seeds carried on a breeze to pop up in a new spot next year.

For more ideas, see Everything You Need to Know About Cottage Gardens and browse our curated design guides Annuals 101 for tips to grow Sunflowers, Nasturtiums, and Zinnias.

Help Your Hydrangeas

See more of this garden in Rhode Island Roses: A Seaside Summer Garden in New England. Photograph by Nathan Fried Lipski of Nate Photography.
Above: See more of this garden in Rhode Island Roses: A Seaside Summer Garden in New England. Photograph by Nathan Fried Lipski of Nate Photography.

Do you wish your pink hydrangeas were blue, or vice versa? You can take control of their color destiny by amending the soil. For tips see Hydrangeas: How to Change Color from Pink to Blue.

Keep Weeding

Above: Photograph by Sara Barrett.

Don’t let the weeds win. If you need a new weapon to inspire you during the doldrums of summer, see a few of our favorites in 10 Easy Pieces: Weeding Forks.

Prune Fruit Trees

A water sprout is a shoot (or cluster of shoots) that appear, unbidden, on a tree trunk as shown on this cherry tree in Jindai Botanical Gardens in Tokyo. Photograph by Takashi .M via Flickr.
Above: A water sprout is a shoot (or cluster of shoots) that appear, unbidden, on a tree trunk as shown on this cherry tree in Jindai Botanical Gardens in Tokyo. Photograph by Takashi .M via Flickr.

Prune spring-flowering fruit trees in summer when spores of silver leaf disease are dormant.

For more tips, see Everything You Need to Know About Flowering Trees.

Fill Bird Baths

Photograph by Marie Viljoen.
Above: Photograph by Marie Viljoen.

Water evaporates faster in hotter temperatures. Replenish bird baths as needed. For more ideas about designing water features, see Everything You Need to Know About Fountains.

Cut Back Wisteria

Photograph by Mimi Giboin.
Above: Photograph by Mimi Giboin.

Wisteria, if unchecked, will behave like a thug, says our friend Tim Callis, a garden designer on Cape Cod. He recommends shearing several times a year. In summer, cut back long shoots and stems to no more than six leaves.

Water if Needed

Photograph by Matthew Williams for Gardenista.
Above: Photograph by Matthew Williams for Gardenista.

Gardens like an inch of rain a week. Is yours getting enough? Use a Rainwater Calculator to figure it out, and if your plants need more irrigate accordingly.

Automate your irrigation system with Hardware 101: Smart Irrigation Controllers. And if you need to upgrade or repair your irrigation, see Drip Irrigation: Emergency Repair Kit Essentials.

Don’t Mow Low

An English boxwood hedge edges a mown path in which daisies thrive. Photograph by Britt Willoughby Dyer.
Above: An English boxwood hedge edges a mown path in which daisies thrive. Photograph by Britt Willoughby Dyer.

In hot, dry months keep your lawn looking green by allowing blades of grass to grow longer; a crew cut will create brown spots. Use the right tool for the job; see 10 Easy Pieces: Reel Lawn Mowers and 10 Easy Pieces: Riding Lawn Mowers.

N.B.: This post is an update; it was first published July 2015.

Are you planning a major overhaul or a minor rehab in the garden? Get inspiration from our Garden Design 101 guides and see:

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