Setup and Planting Instructions

Follow along with our steps and instructions for how to get your Caja ready for planting. For optimal results, we recommend using a potting soil that includes worm castings and our Fertilizer/Dolomite Package.

Caja Cutaway

1. Gather MAterials

You will need Caja, Soil Media (potting soil), Seeds and/or Transplants, Fertilizer/Dolomite, and Water.

Caja cutaway parts aeration screen watering tube

2. Setup Caja

Place the aeration screen and watering tube into the Caja. Position the screen so that the watering tube is in the corner with the diagonal slats on the bottom.

Caja soil packed corners

3. Add Potting Soil

Fill Caja halfway with potting soil. Press the potting soil firmly into the “Capillary Corners” to ensure proper wicking of water from the reservoir throughout the soil media.

Caja add dolomite and fertilizer

4. Add Fertilizer / Dolomite

Spread dolomite and fertilizer evenly over the soil surface. Adding the fertilizer in now means proper nutrition for your plants as they grow without worry during the growing season.

Caja moisten water soil

5. Lightly Water Potting Soil

Most potting soil will be quite dry so moistening it now will help your plants acclimatize to pre-moistened soil.

Caja mound soil

6. Pour remaining Soil Into Caja

Add the rest of the soil into your Caja. Mounding it 1-2″ above the rim will allow the soil to settle flush with the upper lip during the growing season.

Caja mulch cover cut holes

7. Add / Secure Mulch Cover

Carefully add the mulch cover over the top of the box. You will need to cut/create a hole for the watering tube to pass through. Cut an “X” or a hole in the cover according to your plant selection. See our Planting Guide for Details.

Caja plant seeds or transplants

8. Plant Seeds or Transplants

Direct seed or plant transplants into your Caja.

Caja move to garden location

9. Move CAja to Growing Area

If your preparation space is different than your growing space, move the Caja to your desired growing location.

Caja water through cover

10. Fill Water Reservoir

Fill the water reservoir. This is also the only time when we recommend watering the seeds or transplants directly through the cover as it can take 24 hours for water to percolate up from the reservoir.

caja water overflow hole3

Watering Tip #1

All watering should be done through the watering tube. Your Caja can be filled with a hose or watering can and you’ll know the 10L reservoir is full when water flows out the over holes of the Caja.

caja setup aeration screen watering tube ae med

Watering Tip #2

It is impossible to overwater as the overflow holes prevent the soil from getting too saturated. Do not let the reservoir run dry as it can affect water movement in the container.

Learn More

Check out our YouTube page for gardening ideas and inspiration and videos to follow along. Download a PDF copy of our Caja Setup and Planting Instructions. Download French language PDF Instructions et guide de plantation Caja.

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