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best way to germinate seeds indoors

Line the bottom of the first plate with a few layers of wet tissue and drain any excess water from the plate.

When the first few millimetres of root have emerged from a germinated seed, each one should then be carefully transferred to a small container of growing medium (soil, coco-fibre or rockwool).

Step 1. The setup – How to germinate cannabis seeds

Warning!
Unfortunately, regulation and implementation in respect of cannabis seeds often differ from country to country. For this reason we advise you as a matter of urgency to make inquiries about the regulations to which you are subject. Read the complete disclaimer here.

Place the cannabis seed, root first, into the hole and cover with a small amount of growing medium – just enough to block light, not enough to obstruct the seedling when it emerges.

Check the seeds every day to ensure that the tissue does not dry out. Spray the tissues with water if necessary.

For seeds to germinate, most must be kept warm: about 65 to 75 degrees Fahrenheit. A favorite place to keep seeds warm in order to germinate is on top of the refrigerator. Or, you can purchase seed-warming mats to place under the seed trays. Once a seedling emerges, they can tolerate fluctuating temperatures (within reason). Whatever type of light you use, natural or artificial, make sure it produces enough heat to keep the plants in the 65- to 75-degree range.

The Spruce / K. Dave

The Spruce / K. Dave

Keeping Seeds Too Cool

To increase your chances of getting it right, here are a few things you can do:

The Spruce / K. Dave

Seeds are finicky when it comes to how deep they are planted. Some seeds need complete darkness to germinate and others require light to germinate.   Proper planting depth is usually provided on the seed packet. If there is no information on the packet, the rule of thumb is to plant seeds two to three times as deep as they are wide. Determining depth can be a challenge, but if you are not sure, err on the shallow side.

It is quite economical to start seeds indoors, especially when the seedlings grow into robust plants. However, growing seeds indoors can be challenging. To significantly increase your chances of success, avoid these common seed-starting mistakes.

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Some vegetables, like Tomatoes , Eggplants, and Peppers require a long growing season. To ensure healthy growth, most gardeners start seeds for these vegetables indoors in Spring. Starting your own seeds is not only less expensive than purchasing transplants, it also generally results in a more productive harvest season. Plus, it’s a fun, rewarding way to kick off on the gardening season!

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Plant seeds at the proper depth. Check the seed packet for planting depth. You don’t need to measure precisely, but be careful not to plant any deeper than the directions suggest. The rule of thumb is to plant the seed two-to-three times as deep as the seed is wide. For example, tiny seeds should be barely covered by soil mix, while large seeds like beans should be sown about an inch deep. If you sow seeds too deeply, they won’t have enough stored energy to make it to the surface. Plant extra seeds, because it’s likely not all of them will germinate; you’ll thin out the extra ones later.

After sowing, set the containers in a warm location. On top of the refrigerator or near a radiator are usually good spots. Check your pots every day for signs of growth!

As soon as seedlings emerge, place pots in a bright location. A sunny window will do, but adding consistent light from supplemental fluorescent lights will give you the best results. Suspend the lights just an inch or two over the tops of the plants.

Purchase your seeds from a trusted source. Fresher, higher quality seeds will have a higher germination rate (meaning more will sprout), and will give you a head-start in growing delicious, nutritious vegetables. (Check out Landreth Seed, our line of heritage and heirloom vegetable seeds!)