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Do you have what you need to make your garden grow?

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Explore Your Local Garden Center at a Home Depot Near You. Get inspired to upgrade your plants and landscaping.

Garden Center

Contact Us
Pro Service Desk(801)464-0013
Tool & Truck Rental(801)464-0004
Store Hours
Mon-Sat: 6:00am - 10:00pm
Sun: 7:00am - 8:00pm
Curbside: 09:00am - 6:00pm
Location
328 West 2100 South
Salt Lake City, UT 84115
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The Home Depot Garden Center at 21St South

Mother's Day Deals on Gardening Gifts
When you're searching for Mother's Day gardening gifts, check out the great deals on our garden decor, flower pots, and planters. Our Mother's Day Sale is your solution for the perfect present. You can even surprise her with new patio furniture. If you're not sure what to get, a gift card never fails. It's easy to shop the sales that run from May 2nd to May 12th on our mobile app or at your local store.

Mother and child gardening with tools

On those beautiful days, clean up the yard before everything blooms in earnest. Lawn care is often a priority, as well. Planning your garden lets you make the most of your time and space. Remember to measure your garden so you can find fresh mulch near you as soon as it's available. No matter what outdoor projects you choose to tackle, The Garden Center in 21St South can help you enjoy your spring activities to the fullest.

Plant Hardiness Zones Explained
The first thing you should know when planting spring flowers, veggies, and other seeds is your planting zone. Every location in the U.S. and its territories is sorted into blocks by climate. Find your zone on the USDA zone map and learn when to plant seeds.

For example, you could transplant bell peppers outdoors in mid-March in Zone 10, but not until the end of May in Zone 4. The plants that'll thrive in your area are in your zone, and all the zones numbered less than that. In other words, a Zone 9 garden can support plants listed as Zones 1–9. You can plant seeds indoors roughly a month before you can plant them outside, or direct sow. Read your seed packet for details. If you start plants a little later than recommended, it's not ideal, but it will even out as time passes.

Gardening in Your Growing Zone
This region ranges from 7–9, with higher elevations in Zones 5 and 6. You’ll find fertile land in some places, desert and mountains with harsher conditions elsewhere. What you can grow and when will vary considerably depending on where you live. In Zones 5 and 6, the outdoor growing season doesn’t begin here until mid-March or even April, although you can start some veggies by seed halfway through February. Warmer Zones 7–9 can plant earlier, but if you’re in the desert, you’ll likely want to investigate indoor gardening in a sunroom or enclosed porch.

Utilize greenhouses to grow herbs and vegetables. Native plants like succulents, cacti, and other hardy desert shrubs will grow outside with ease. Other beloved garden vegetables love the heat, like cucumbers, peppers, squash, and tomatoes. If you start them indoors and carefully introduce them outdoors in the shade, you can enjoy raising vegetables even in a dry climate. However, many spring flowers are sensitive to that much sun and heat, so research to find which varieties can handle the weather before planting outdoors.

Start Seeds Indoors
Grow your garden from seeds by starting them indoors. We've got all the seed starter supplies you'll need. For best results, you'll want grow lights or a warming mat to go with your seed tray or plant pots. If you're planting a larger garden, use seed trays — like the ones you see sprouts in at your 21St South Garden Center — to make it easy to stay organized and plant tiny soil plugs later. You can also use pots with potting soil and seed starter mix.

Measure your finger to use it as a ruler. In general, you'll plant 3–5 seeds, then press them into the soil to the depth you need with your finger. Mark where you planted the seeds with a toothpick or plant tag. That way, you'll know where your seeds should pop up. Otherwise, it'll be a surprise when the sprouts push out of the soil.

Sprouts
Prepare your seed sprouts for outdoor life while they're still indoors. These micro-seedlings are fragile — only an inch or so high, with the tiniest seedling leaf or two — but they're resilient. Seedlings don't get all this pampering in nature, so they can handle more than you think. However, don't go overboard, as your sprouts are still babies. You can even use an oscillating floor fan on low to mimic the wind and strengthen their stems.

Harden Your Seedlings
When you're hardening your sprouts and gradually introducing them to the outdoors, be flexible. Keep an eye on your baby plants. If they're looking rough, don't push them. It’s ok to roll back a step or two if need be: Bring them inside overnight or put them in shady places instead of direct sun. As always, make sure they're watered enough. Take wilted plants inside and give them a good drink, making sure they're healthy before returning them outdoors.

Transplant Young Plants Into Their New Homes
By now, your plants have three or four true leaves — they'll look different from the miniature seedling leaves. When the ground is warm, and you're not expecting soaking rain, look into transplanting your small plants into their new outdoor home. These large seedlings that are ready to be planted can also be called "transplants" or sometimes "starts." In cases where you directly planted into the ground, you may still want to shuffle plants around for the best spacing and sun. That's also a transplant situation, as is repotting plants into larger pots.

Protect Your Garden With Mulch
Finish it off with compost and mulch. Compost enriches the soil so your garden can grow even better. It may help foster stronger and larger plants that bear more flowers and fruit. Mulch controls weeds and keeps the soil moist. Compost and mulch can be DIY creations, but you can also purchase them in-store. The next time you're looking for "mulch near me," stop by the Garden Center to get the perfect amount.

Greet the Spring
Late winter into early spring is an exciting time in the world of gardening. Don't miss a minute of growing season. Prepare to fertilize your lawn, plan your garden and landscaping, and browse our garden center pages to find inspiration on which spring flowers to plant when the weather warms. Shop for the fertilizer, soil, and seeds you need in the aisles of your 21St South Garden Center, online, or on our mobile app. Let's get growing together.

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Frequently Asked Questions About Gardening

What planting zone am I in?

Check the USDA zone map, as planting zones have changed slightly over the years. Zones with higher numbers can plant earlier in the year. Increase your odds of successful gardening by choosing plants that are meant for your zone.

Can I plant seeds directly in the ground?

If the soil isn't cold and frozen, consider planting your flower, fruit, or vegetable seeds directly into your garden. This is called the "direct sow" method. Plant after the threat of frost is gone for the season, as seedlings and sprouts can't weather those conditions. You can also start your seeds indoors if you'd like. Consult your seed package for how and when to sow seeds.

Do you carry organic seeds and plants?

We offer many organic gardening options, including organic fruit seeds and veggie seeds, and organic flower and herb seeds which are subject to availability. We carry the organic soil to plant it in as well as the organic fertilizer to feed it.

Do I have to harden off my seedlings before planting them outside?

Yes, if you raised plants indoors from seeds, harden them before you transplant them. Hardening allows your seedlings to adjust to outdoor life and the fluctuating spring weather, making them more resilient against cold snaps. It slows their growth until they're strong and ready to take off during a spring warm front.

How do I plant a transplant or baby plant?

Squeeze the plastic around the plant to loosen the soil. Carefully coax the plug of dirt with the plant into your palm, then place it into the hole you dug for it. Make sure the top of your transplant's soil is even with the garden soil, and carefully press the earth into place. Avoid leaving the plant as island in a puddle of water, and don't pack the ground too tightly. Your plant baby needs to breathe.

What are seed tapes?

If you want more guidance in planting or are dealing with extremely tiny seeds, consider seed tapes. They're biodegradable pieces of paper with tiny seeds affixed at regular intervals. Just bury the tape and water as directed. If all goes well, you'll have perfectly spaced sprouts pop up soon.

Nearby Stores

3398 S Highland Drive

Salt Lake City, UT 84106

2.86 mi

Tool & Truck Rental

(801)461-2308

Pro Service Desk

(801)461-2302

Mon-Sat: 6:00am - 10:00pm

Sun: 7:00am - 8:00pm

4581 S 4000 W

West Valley City, UT 84120

5.54 mi

Tool & Truck Rental

(801)963-7026

Pro Service Desk

(801)963-7000

Mon-Sat: 6:00am - 10:00pm

Sun: 7:00am - 8:00pm

1310 E Park Centre Dr

Salt Lake City, UT 84121

7.05 mi

Tool & Truck Rental

(801)569-5405

Pro Service Desk

(801)569-5400

Mon-Sat: 6:00am - 10:00pm

Sun: 7:00am - 8:00pm

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