I also use a product called Organic Rev that seems to be really giving my seedlings a healthy boost. They feel lighter when you lift them if they need water. Once you get attuned to seed starting you will begin to be able to measure if you need to water by feeling the weight of the tray of plants.
Keep watered, we want the soil damp not wet and we never want it to dry out completely. Agrothrive is my favorite and works wonders. Nighttime temps can go down to 55F degrees.Īs the petunia plants grow lift the lights to stay 3 to 6 inches above them.įeed the seedlings weekly with a 50% dilution of a balanced organic liquid fertilizer. Petunia seedlings will grow well in a lower temperature, 65 – 70F degrees. Keep the seedlings under the lights but remove them from the heat mat. With a transparent cover over the seed tray to keep in moisture, you should not need to water. The optimum temperature for good germination of petunia seeds is 70 to 75 degrees. The lights should be on for 14 hours per day. Place the lights about 3 to 6 inches above the top of the tray. Place under lights and if you have one, a heat mat, specifically for seed starting. Cover the plant trays to keep moisture in. Starting petunia seeds indoors is similar to other plants. Related: See why I love Wave Petunias and how you can use them in your garden! Petunia Seed Germination Warm water absorbs more quickly into the seed starting medium. Place the tray or container into another tray of warm water. Petunias need light to germinate so no need to cover with soil. Press the seeds firmly into the seed starting medium. With the seeds I have purchased, I get great germination rates. When using fresh seeds it is a waste to plant more than one plant per cell. If planting the petunia seeds in the trays with cells then plant one seed per cell. If you do not have a humidity dome then spritz the top of the soil daily to keep them moist. If your seeds are pelleted do NOT cover with soil. Plant the seeds about an inch apart or so.
Many petunia seeds come pelleted making them easier to handle. No need to pre-wet before filling container, it is harder and messier to fill cell tray containers when the potting soil is wet. It is easier to fill small individual seed starting containers with the dry mix and then set them into a tray of water to let it absorb and moisten. Some are called Easy Wave and the name says it all!įill a tray or container with seed starting mix. This works with all petunia varieties including wave petunias.
When I am sowing a lot of seeds I like to use trays and then plant up the seedlings when they get big enough. You can sow your petunia seeds in trays, small containers, or soil blocks. If you make a purchase after clicking a link I may make a small commission at no added cost to you.
When to sow petunias seeds for early bloom.So get ready to plant some seeds and watch them grow!
#MINI PETUNIAS SEEDS HOW TO#
In this step-by-step guide, we will show you how to grow petunias from seed easily and successfully, this includes Wave Petunias. Looking to add some beautiful petunias to your garden this year? Why not try growing petunias from seed? It can be a fun and rewarding experience, and it’s a great way to save money, too.
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