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Seed Flats - Wilson Garden

Seedling flats wholesale

Nursery Flats Wholesale, Factory Price, Free Samples, Fast Delivery! We are a professional seed trays wholesale supplier with 20 years of manufacturing experience. We supply seed starting flats with good quality and competitive price. We have a 35,000m² workshop area, serving customers worldwide!


We can ship seedling flats worldwide, such as USA, Canada, UK, Ireland, Australia, NZ, UAE, Saudi Arabia, Lebanon, Kuwait, Qatar, Jordan, Oman, Yemen, Bahrain, Israel, Trinidad, Jamaica, Barbados, Brazil, Chile, Argentina, Ecuador, Peru, Japan, South Korea, Malaysia, Thailand, Vietnam, Pakistan, Bangladesh, Singapore, France, Spain, Portugal, Germany, Belgium, Netherlands, Italy, Poland, Serbia, Greece, South Africa, Nigeria, Kenya etc.

Size of seed starting flats

Our plastic seed flats size: 6 cell, 8 cell, 12 cell, 15 cell, 18 cell, 20 cell, 21 cell, 32 cell, 36 cell, 40 cell, 50 cell, 51 cell, 72 cell, 98 cell, 104 cell, 105 cell, 128 cell, 144 cell, 162 cell, 200 cell, 288 cell or according to your requirements.


Our heavy duty seed starting trays size: 4 cell, 24 cell, 32 cell, 105 cell, 144 cell, 162 cell or according to your requirements. Our deep root seed trays size: 6 cell, 12 cell, 20 cell, 24 cell, 32 cell, 50 cell, 105 cell or according to your requirements.


We also have microgreen trays, 1020 trays, paddy nursery trays, seed trays with lids and seed starting trays with dome. Our seedling flats are reusable. You can use seed starting flats in greenhouse, indoors and outdoors. You can reuse them after washing them.

ODM or OEM nursery flats

Our seed flats are made of high quality polystyrene (PS). Color, shape, sizes and logo can be customized to meet your best seed starting trays requirement. We have the ability to create custom seedling flats for any customer.


OEM and ODM are all available. We are able to make different thickness and weight. If you want your own Private Label, please send us the label or logo you want to print on the seed starting flats, and we will proofing for you.

Seed flats and trays manufacturers

Wilson Garden is a company which is engaged in researching, developing, producing and selling nursery flat trays. Our mission is to provide our customers with high quality products and services.


As seedling trays suppliers, we make sure that our seed flats and trays are qualified products. We can also provide free samples for testing. Contact us and let’s win more markets together.


Welcome To Contact Us For Best Offer And Free Samples! Please Feel Free To Send Your Any Questions Details Below. Click "Send"!

What are seed flats?

You can use shallow seed flats for germinating seeds. They are made of plastic, glass or wood. Many nurseries sell seed starting supplies, including soil amendments and grow lights for indoor use.


Seedling flats are usually rectangular. They usually have many small holes in the bottom to allow excess water to drain away. The soil in nursery flats is kept moist throughout germination. So you must place them on a flat surface. This allows excess water to drain away, such as a wet paper towel or newspaper.


Gardeners use seed starting flats to germinate seeds indoors before they transplant seedlings into the garden. The flat is placed into a light source where it will receive adequate sunlight for germination. Professional growers want to start seeds early. So they can transplant them into larger containers or beds later on.


Planting flats has enough room for hundreds of tiny seedlings, so you can start many plants at once. You can use nursery flats with holes to germinate seeds in a controlled environment which will help them germinate faster and healthier. If conditions are not optimal for growing seedlings outside, you can control them in a flat planter tray easily.


Some flat seed trays have covers which you can place over the top of each flat. So you can control the temperature, humidity, and light that your seeds get. You can keep all of your seedlings together in seed germination flats until they've sprouted and are ready for planting.

How do you start seed flats?

If you're starting your seeds indoors, you should prepare the soil first. This is a great time to add some organic matter like compost or worm castings. Then add a starter fertilizer that has been diluted so that it's half the recommended strength.


Start with a seed-starting mix that contains peat moss or coir. Fill the seed flat trays about 1 inch from the top with the soil mixture. Then water it thoroughly until the excess water runs out of the bottom of the flats.


When you sow your seeds, use fresh seeds and make sure they're sown at the correct depth (about twice their size). Water gently every few days until all danger of frost has passed and then once every two weeks after that until warm weather arrives.


Seedlings need more frequent watering than mature plants do, but it's important not to overwater them or let their roots sit in standing water because this can lead to root rot and other diseases. Try not to disturb your seedlings until they have reached at least 3 weeks old (or longer for large seeds like corn).


Seedlings in seed growing flats need plenty of light, so place them under fluorescent lights on top of a heat mat (or in front of a sunny window). Once they have germinated and grown their first set of true leaves (not cotyledons), thin them to one plant per cell or pot until they are at least 4 inches tall.

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