Garden Center at Kapolei #1706

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

Plant Hardiness Zones Explained
The first thing to know 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 zone map and learn when to plant seeds.

For example, you could plant bell pepper seedlings 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 5 garden can support plants listed as Zones 1–5. 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 them 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 good 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. Your garden might still be growing if there's 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 tapioca, yams, and taro 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 here. Hydroponics, potted plants, 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 with the direct sow method, right into the soil, is another option. It doesn't give you as much organized planning in terms of space and reliability as starting indoors. However, 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 could have no seeds that germinate. A critter may eat the tender 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. Flooding rains might disturb the ground and 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're eager to get growing or would like more control in the care and feeding of seedlings, 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 sunlight and rain. Keep your seeds cozy 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 without overwatering. Blanket the surrounding ground with mulch, marking where the plant is with a tag 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 garden bed with mulch and compost. Compost enriches the soil so your garden can grow even better. It may help foster stronger and larger plants that bear more fruit and flowers. Mulch keeps your soil moist and controls weeds. 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 right amount.

Greet the Spring
Early spring is an exciting time in the world of gardening. Don't miss a minute of growing season. Plan your garden and landscaping, prepare to fertilize your lawn, and browse our garden center pages to find inspiration on what to plant when the weather warms. Shop for the seeds, fertilizer, and soil you need in the aisles of your Kapolei Garden Center, online, or on our mobile app. Let's get growing together.