Germinating your seeds

  1. Find the right containers You can start seeds in almost any type of container, as long as it’s at least 2-3″ deep and has some drainage holes. If you are the DIY type, you might want to grow seedlings in yogurt cups, milk cartons or paper cups. I prefer the convenience of trays that are made especially for seed starting. It’s easy to fill the trays, the watering system ensures consistent moisture and I can move them easily.
  2. Prepare the potting soil Choose potting soil that’s made for growing seedlings. Do not use soil from your Fiji garden or re-use potting soil from your houseplants. Start with a fresh, sterile mix that will ensure healthy, disease-free seedlings.Before filling your containers, use a bucket or tub to moisten the planting mix. The goal is to get it moist but not sopping wet; crumbly, not gloppy. Fill the containers and pack the soil firmly to eliminate gaps.Remember that most mixes contain few, if any, nutrients, so you’ll need to feed the seedlings with liquid fertilizer a few weeks after they germinate, and continue until you transplant them into the garden.
  3. Start Planting Check the seed packet to see how deep you should plant your seeds. Some of the small ones can be sprinkled right on the soil surface. Larger seeds will need to be buried. For insurance, I plant two seeds per cell (or pot). If both seeds germinate, I snip one and let the other grow. It’s helpful to make a couple divots in each pot to accommodate the seeds. After you’ve dropped a seed in each divot, you can go back and cover the seeds.Moisten the newly planted seeds with a mister or a small watering can. To speed germination, cover the pots with plastic wrap or a plastic dome that fits over the seed-starting tray. This helps keep the seeds moist before they germinate. When you see the first signs of green, remove the cover.
  4. Water, feed, repeatAs the seedlings grow, use a mister or a small watering can to keep the soil moist but not soggy. Let the soil dry slightly between waterings. Set up a fan to ensure good air movement and prevent disease. I use a fan that’s plugged into the same timer as my grow lights. Remember to feed the seedlings regularly with liquid fertilizer, mixed at the rate recommended on the package.
  5. Light, light, light!Seedlings need a lot of light. If you’re growing in a window, choose a south-facing exposure. Rotate the pots regularly to keep plants from leaning into the light. If seedlings don’t get enough light, they will be leggy and weak. If you’re growing under lights, adjust them so they’re just a few inches above the tops of the seedlings. Set the lights on a timer timer for 15 hours a day. Keep in mind that seedlings need darkness, too, so they can rest. As the seedlings grow taller, raise the lights.
  6. Move seedlings outdoors graduallyIt’s not a good idea to move your seedlings directly from the protected environment of your home into the garden. You’ve been coddling these seedlings for weeks, so they need a gradual transition to the great outdoors. The process is called hardening off. About a week before you plan to set the seedlings into the garden, place them in a protected spot outdoors (partly shaded, out of the wind) for a few hours, bringing them in at night. Gradually, over the course of a week or 10 days, expose them to more and more sunshine and wind. A cold frame is a great place to harden off plants.

Troubleshooting

Only one-quarter of my seeds germinated. What went wrong?

There are a number of factors that affect seed germination. Check the seed packet to determine if all the requirements for temperature and light were met. If the soil was cold and excessively wet, the seeds may have rotted. Dig up one of the seeds and examine it. If it is swollen and soft, the seed has rotted and you will need to start over. If the soil was too dry, the seeds may not have germinated or may have dried up before their roots could take hold. If the seeds were old, they may no longer be viable. Try again and be sure to provide consistent moisture.

My seedlings are spindly. What can I do?

Plants grow tall and leggy when they do not receive enough light. Use grow lights to ensure that they receive 15 hours of bright light each day. Warm temperatures can also stimulate leggy growth. Try lowering the room temperature and reducing the amount of fertilizer you apply. For more on this topic, see the article Growing Under Lights.

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