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Mon-Sat:
5:00am - 9:00pm
Sun:
6:00am - 8:00pm
Curbside:
09:00am - 6:00pm
Location
When you're ready to seed your lawn, our calculator helps you estimate the amount of grass seed you'll need to get the job done.
Enter your preferred material, the square footage and mulch depth of the coverage space for accurate results.
We'll calculate the amount of fencing you should purchase based on your property needs.
How do I check my USDA 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. Choose plants that are meant for your zone and increase your odds of gardening success.
Can I just put seeds in the ground?
If the soil is warm and pliable, consider planting your fruit, veggie, 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 seedlings and sprouts can't weather those conditions. You can also start your seeds indoors if you'd like. Consult your seed packet for how and when to sow seeds.
Do you carry organic plants and seeds?
We offer many organic gardening options, including organic fruit seeds and veggie seeds, as well as organic herb and flower seeds that are subject to availability. We also carry the organic fertilizer to feed your plants and the organic soil to plant them in.
Do I have to harden off my seedlings before planting them outside?
Yes, for best results, if you raised plants indoors from seeds in your own plant nursery, harden them before you transplant them. Hardening is the process of getting them used to the great outdoors. It slows their growth until they're strong and ready to take off during a spring warm front. Hardening also makes your plants more resilient to a sudden cold snap. Speak to a garden center associate or read your seed packets for more info on caring for your tender seedlings.
How do I strengthen my seedlings before planting them outdoors?
Get your sprouts used to breezy spring days and storms with a fan and keep fungus from growing in damp conditions. Set up an oscillating floor fan on low to mimic the wind. Just the gentlest breeze for several hours a day will do the trick — no need to prep them for a hurricane. They'll gain strength even though you shouldn't see them moving. If you don't set up a fan, your seedlings may be more sensitive to strong winds. Try to plant between storms.
Should I use peat moss starters or coir starters?
Seed starters, full of nutrients in pellets or pots, work for new and experienced gardeners alike. 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 cucumbers and eggplant, 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.
Set Up For Springtime
On beautiful spring days, tidy the yard before everything blooms in earnest. Lawn care is often a priority as well. Don't forget to clean the shed and sweep out the gazebo in preparation for spring, too. No matter what outdoor projects you choose to tackle and which plants you need, you'll find that The Home Depot Garden Center in Mapunapuna is the local plant nursery to help you enjoy your spring activities to the fullest.
Plant Hardiness Zones Explained
The first thing to 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 growing 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. You'll have good results with plants that have your zone number or less. In other words, a Zone 7 garden can support plants listed as Zones 1–7. 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 a little later than recommended, it's not ideal, but it will even out as time passes.
Gardening in Your Growing Zone
Hawaii's growing zones range from 9 to 12, with a few areas of Zone 13. Your climate is excellent for growing year-round if you've got rich soil. Why not think of springtime planting now, while it’s technically meteorological winter? With such beautiful weather, you can direct sow many types of seeds. Last year's garden might still be growing if there was no reason to put it to bed. In that case, tend it as usual.
Some seeds, like tomatoes, do best when started indoors and aren't recommended as direct sows, so read your seed packets and adjust accordingly for your region. Breadfruit, coconuts, and bananas thrive in Hawaii's tropical climate. Roots like taro, yams, and tapioca grow well, too.
Hot peppers thrive here, and you can try bell peppers. Veggies in the squash family, like cucumbers and pumpkins, also enjoy the weather. If your temps regularly get over 90s, look into shade sails or another shade structure to give your garden a break from the humidity and intense heat. The sun is so strong here that the full sun recommendation that works on the continental U.S. might be too harsh. Potted plants, hydroponics, or container gardening gives you extra flexibility to control the amount of shade and sun for best results.
Plant Seeds Outside With Direct Sow
Planting seeds into your garden soil, or using the direct sow method, is an alternative option. There's less planning and tending than growing indoors. If you like to go with the flow, follow the instructions on your seed packet and give it a try.
Your seeds might struggle to grow or get washed away, or critters or bugs might eat the sprouts. But if you're really lucky, you might get strong sprouts, perfectly spaced and ready to grow all spring. The reality of your sown seeds will usually be somewhere in between, and spreading out tiny sprouts throughout the soil isn't so bad. You know those sprouts are primed to survive, although there are no guarantees.
Start Seeds Indoors
If you'd like more control over your seedlings' journey or you're eager to get growing, start your seeds indoors in your own plant nursery. 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 sun and rain. Keep your seeds warm with warming 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
Place your transplants in the ground, then give them a generous drink of water. Surround them with mulch, marking where the plant is with a tag or stick so you can easily find it among the grass clippings, old leaves, or straw. Consider putting up chicken wire or other protective measures if rabbits, squirrels, deer, or chipmunks visit your yard regularly, as your sprouts may otherwise become a snack.
Protect Your Garden With Mulch
Finish your flower bed with compost and mulch. Mulch keeps your soil from drying out and controls weeds. 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. 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 right amount.
Greet the Spring
Don't miss a minute of growing season. Plan your garden and landscaping, prepare to fertilize your lawn, and browse The Home Depot nursery to find inspiration on what to plant when the weather warms. For those without lawns, consider adding artificial grass or an outdoor rug to your outdoor space. Shop for the fertilizer, soil, and seeds you need in the aisles of your Mapunapuna Garden Center, online, or on our mobile app. Let's get growing together.
421 Alakawa St
Honolulu, HI 96817
2.54 mi
Mon-Sat: 5:00am - 10:00pm
Sun: 5:00am - 8:00pm
1021 Kamehameha Hwy
Pearl City, HI 96782
6.20 mi
Mon-Sat: 5:00am - 10:00pm
Sun: 6:00am - 8:00pm
4600 Kapolei Pkwy
Kapolei, HI 96707
12.50 mi
Mon-Sat: 6:00am - 10:00pm
Sun: 7:00am - 8:00pm