How to Make Cardboard Tube Seed Starters — Easy Step-by-Step Guide
Transform empty toilet paper rolls into biodegradable seed starters for your garden. A fun and sustainable way to get kids involved in planting!
Quick answer
To make cardboard tube seed starters, you need toilet paper rolls, potting soil, seeds, and about 15 minutes. Start by folding the bottom of the tubes. This beginner-friendly activity has 7 steps and is perfect for families and young gardeners.
What you need
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Step-by-Step Instructions
- 1
Gather your empty toilet paper rolls and scissors.
- 2
Cut 1-inch slits around one end of each toilet paper roll, making 4-6 evenly spaced cuts.
- 3
Fold the cut flaps inward to create a closed bottom for each tube.
- 4
Stand the tubes upright on a tray or in a shallow container.
- 5
Fill each tube about two-thirds full with potting soil.
- 6
Plant 1-2 seeds in the center of each soil-filled tube, following the seed packet instructions for depth.
- 7
Gently cover the seeds with a thin layer of soil and lightly water the soil until moist.
Tips & Troubleshooting
- 1If the bottoms of your tubes aren't holding the soil well, you can add a small piece of cardboard or tape to reinforce them.
- 2Experiment with different types of seeds! Herbs like basil and parsley, or small flowers like marigolds, work wonderfully.
- 3Once your seedlings have grown a few inches and are ready to be transplanted outdoors, you can plant the entire cardboard tube directly into the ground. The cardboard will biodegrade.
- 4Keep the soil consistently moist but not waterlogged. A spray bottle is great for young children to use without overwatering.
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Frequently Asked Questions
Can I use paper towel rolls for seed starters?
Yes, paper towel rolls can also be used! You'll just need to cut them in half to create tubes of a similar size to toilet paper rolls for easier handling and planting.
How long will it take for the seeds to sprout?
Sprouting times vary greatly depending on the type of seed. Some seeds may sprout in just a few days, while others can take one to two weeks. Check your seed packet for specific germination times.
What kind of soil should I use?
A good quality potting mix is ideal. It's designed to be light, airy, and provide the nutrients seedlings need to get started. Avoid using heavy garden soil, which can compact too much.
When can I transplant the seedlings outdoors?
Generally, you can transplant seedlings outdoors when they have developed a few sets of true leaves and the danger of frost has passed in your area. Ensure the soil is warm enough for the specific plant.
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