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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(603)692-7702
Tool & Truck Rental(603)692-7708
Store Hours
Mon-Sat: 6:00am - 9:00pm
Sun: 8:00am - 8:00pm
Curbside: 09:00am - 6:00pm
Location
12 Commercial Dr
Somersworth, NH 03878
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The Home Depot Garden Center at Somersworth

Spring Black Friday Savings
Our huge spring sale is back, so prepare to save money. Don't forget to replace your outdoor power equipment to make sure your lawn and garden is pristine. Fresh patio furniture makes it easy to savor the spring air, and new tools help take care of that DIY list. Get great Spring Black Friday sales from April 4th through 28th, and enjoy your outdoor oasis as your garden and yard transform with the seasons.

Small blue house with lots of colorful flowers in front garden
Gardening Sale for Mother's Day
The Home Depot Mother's Day Sale is the right time to help Mom upgrade her garden. We've got discounts on popular brands of herb plants, small plants, and those details that make a garden special: planters, garden decor, flower pots, and even patio furniture. If you're not sure of the right present when searching for Mother's Day gifts, a gift card is always a winner. Shop The Home Depot Mother's Day Gardening Gifts Sale from May 2nd through May 12th in-store or online.

Mother and child gardening with tools

It's time to start thinking of spring. We're here to help you prepare for fragrant breezes, warmer temperatures, and sprouts poking up out of the ground. Planting seeds indoors near a sunny window means you'll be ready to transplant spring flowers and young veggie plants when the frosts are through and the ground thaws. You might even want to directly plant organic seeds into the earth.

Plant Hardiness Zones Explained
The first thing to learn when planting vegetables, spring flowers, and other seeds is your planting zone. Every location in the U.S. and its territories is sorted by climate. Find your zone on the USDA plant hardiness 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 6 garden can support plants listed as Zones 1–6. The timeframe to direct sow outdoors in your garden is often around a month later than the indoor start date. Read your seed packet for details. If you start plants later than recommended, it's not ideal, but it will even out as time passes.

Gardening in Your Growing Zone
In Zone 5, which includes parts of Pennsylvania as well as upstate New York, New Hampshire, Vermont, and southern Maine, your best bets for veggies will be root vegetables like beets and carrots, leafy greens including lettuce, and cruciferous veggies like cabbage and kale. You can try squash, but prepare for additional warming upkeep when late frost is forecast. Planting dates are roughly mid-March through May 1st, depending on whether you're directly sowing them into your garden or starting your seeds indoors.

Much of Ohio, Pennsylvania, West Virginia, Connecticut, Massachusetts, southern New York state, and New Jersey are in Zone 6, so planting can begin earlier there than farther north. Parts of Virginia are even warmer, coming in at Zone 7. The outdoor growing season doesn't begin until mid-March or even April, although you can plant some veggie seeds halfway through February. Tomatoes, cucumbers, peppers, squash, onions, and other classic garden crops will thrive in this region, and most of them can get an early start indoors before spring really moves in.

Plant Seeds Outside With Direct Sow
Planting seeds with the direct sow method, right into the soil, is another option. There's less planning and tending than growing indoors. If you like to go with the flow, follow the instructions on your seed pouch and try it out.

Prepare to deal with whatever hand nature deals you: You may have no seeds that germinate. A critter may snack on the seedlings. All the seeds you plant in each hole may sprout, so you'll need to spread them out later or choose the most robust sprouts to survive in a process called thinning. Heavy rain might wash away the seeds. But if you're lucky, you'll get strong sprouts that are ready to grow all spring.

Start Seeds Indoors
If you'd like more control over your seedlings' journey or you're eager to get growing, start your seeds indoors instead. In general, you can plant seeds indoors about a month before you can do it outside. Like direct sow, you push the seeds into the soil as directed on the seed packet, but that's where the similarities end.

You're responsible for giving them quality substitutes for rain and sun. Keep your seeds cozy with heat mats and grow lights, water them carefully with a mister or watering can, then thin them as they germinate in groups of three. Give them a boost with a gently blowing fan as they lengthen into sprouts if you'd like. Harden them off to get them used to outdoor conditions, then transplant them into your garden when they're big enough.

Transplant Young Plants Into Their New Homes
By now, your plants have 3 or 4 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 big sprouts into their new outdoor home. "Transplant" means that you put these small plants straight into pots or garden soil. 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. Mulch keeps your soil moist and controls weeds. Compost enriches the soil so your garden can grow even better. It may help foster stronger plants that bear more fruit and flowers. Mulch and compost can be purchased in-store or created at home. The next time you're looking for "mulch near me," stop by the Garden Center to get the perfect amount.

Greet the Spring
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 what to plant when the weather warms. Shop for the seeds, soil, and fertilizer you need in the aisles of your Somersworth Garden Center, online, or on our mobile app. Let's get growing together.


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Frequently Asked Questions About Gardening

What's my planting zone?

Check the USDA plant hardiness zone map, as planting zones have shifted slightly through 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 just put seeds in the ground?

If the soil is pliable and warm, consider planting your veggie, fruit, or flower seeds directly into your garden. This is called the "direct sow" method. Plant after the threat of frost is gone for the season, as sprouts and seedlings 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.

How do I plant fruit seeds?

Follow the advice on your seed package. It'll tell you when to start them indoors and when to direct sow. Generally, you'll add three to five seeds per planting hole, then press them into the soil at the correct depth. Mark where you planted them with a flag, wooden craft stick, or twig so you don't think they're weeds later.

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

Yes, for best results, if you raised plants indoors from seeds, harden them before you transplant them. Hardening allows your seedlings to adjust to the great outdoors and sun, rain, and temperature swings, 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 an island with a moat around it, and don't tamp down the ground too tightly. Your plant baby needs to breathe.

Should I use peat moss starters or coir starters?

Seed starters, full of nutrients in pots or pellets, work for new and experienced gardeners. You don't have to use these starters if you're planting in soil, but you may want to. Starting seeds in peat pots works best for delicately rooted plants like carrots and beets, as well as flowers that need acidic soil. Some people prefer coir starters instead, as they have a neutral pH. Check what type of soil your plants need to help narrow it down, and chat with a garden center associate if you need more info.

Nearby Stores

280 N Main Street

Rochester, NH 03867

7.44 mi

Pro Service Desk

(603)335-7304

Mon-Sat: 6:00am - 9:00pm

Sun: 8:00am - 8:00pm

100 Arthur Brady Drive

Portsmouth, NH 03801

11.27 mi

Tool & Truck Rental

(603)427-1478

Pro Service Desk

(603)427-1402

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

Sun: 8:00am - 8:00pm

35 Lafayette Rd

North Hampton, NH 03862

18.79 mi

Pro Service Desk

(603)964-3404

Mon-Sat: 6:00am - 9:00pm

Sun: 8:00am - 8:00pm

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