23:T77e,Spring is in the air, so its time to plant some seeds and grow some veggies! Soils blocks are an excellent way to sow seeds indoors or in the greenhouse to prepare for planting outside. You don't need a lot of plastic pots, can quickly plant a lot of seeds, and most importantly, plants in soil blocks don't get root bound like they do in pots, so get less transplant shock once you plant them in the garden.

This set contains three different size blockers:

- Large 5x5x6 cm soil blocks with a dimple on top for the seeds
- Small 3.5x3.5x4 cm soil blocks for smaller seeds. - Micro 1.8cm soil blocks for germinating seeds indoors that will be planted out directly into the garden or transplant into the large soilblocker (use the square nub)

Separate requested designs with special dimensions:

- [XL 6.5x6.5cm soil block maker for extra large blocks](https://www.thingiverse.com/thing:4800921) - [1x4 Large block maker for bulk making blocks](https://www.thingiverse.com/thing:4806945)

How to make a soil block:

- Make a fine potting soil in a bucket. You can mix your own but potting mix works fine. make sure there are no big pieces of wood or fiber; you could print a sieve if needed.
- Water the soil thoroughly. The soil needs to be really wet but not muddy. If you can make a ball in your hand that keeps it shape, and if you can squeeze water out the ball with your fist it's wet enough.
- Fill the blocker by pressing it into the soil, or fill with your hands until it is completely full.
- Put the blocker in a shallow tray, press the plunger to compress the soil a bit extra, then raise the mantle while keeping light pressure on the plunger.
- You now have a soil block! Seed it, lightly cover the hole with some extra soil if needed. The block needs to be watered after about two days.

Icon made by Freepik from www.flaticon.com24:Tc38,

Found 11 3D-models for “Square Plant Tray” across many websites

Plant tray 4 100x8

Plant tray for IKEA VÄXA rooting cubes

Succulent/Cacti pot with drainage holes and hidden tray

Asian-styled Cat Grass Planter

Square plant pot with watering tray

Print in Place Soil Blocker Set

Square Top pot plant stand with drip tray

Customizable parametric plant tray

seedlings spacer

Square plant tray

Square Plant Tray