Plant and care for pepper seeds in small pots, observe germination, measure growth, and record results to learn basic gardening and plant science.



Step-by-step guide to plant and care for pepper seeds
Step 1
Make drainage holes in the bottom of each pot by pushing a pencil or spoon through the plastic.
Step 2
Fill each pot about two-thirds full with potting soil and smooth the top lightly with your finger.
Step 3
Write the planting date and seed type on a label and stick it to the side of each pot.
Step 4
Plant one pepper seed about half a centimeter deep into the center of the soil in each pot.
Step 5
Gently water each pot until the soil feels evenly moist but not soggy.
Step 6
Place the pots on a tray in a warm bright spot that gets several hours of light each day.
Step 7
Check the soil every day and water only when the top 1 centimeter feels dry to the touch.
Step 8
Look for tiny sprouts each morning and write the first sprout date in your notebook.
Step 9
Every three days measure the height of each seedling with the ruler and record the date and height in your notebook.
Step 10
If two seedlings grow in one pot pinch off the smaller one at soil level so the stronger plant can grow.
Step 11
Share your finished pepper plant and your notebook of growth notes on DIY.org.
Final steps
You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!


Help!?
What can we use if we don't have plastic pots or potting soil listed in the steps?
If you don't have plastic pots or potting soil, use clean yogurt cups with drainage holes poked with a pencil or spoon and fill them two-thirds full with a mix of garden soil, compost, and a little sand to mimic potting soil.
My seeds aren't sprouting—what common step might I be doing wrong and how can I fix it?
If seeds fail to sprout, make sure each seed is planted only about half a centimeter deep, the pots are kept in a warm bright spot, and you water until the soil is evenly moist but not soggy as the instructions say.
How can I adapt this activity for a preschooler versus an older child?
For preschoolers, let them help fill pots, stick on the planting-date labels, and look each morning for tiny sprouts while an adult makes drainage holes and waters, and for older kids have them measure heights every three days and graph the dates and heights in their notebook.
What are some ways to extend or personalize the pepper seed project after following the steps?
To extend the project, decorate the pots, plant two different pepper seed types with labeled dates, record height, sprout date and leaf count every three days in your notebook, photograph progress, and then share the finished plant and notes on DIY.org.
Watch videos on how to plant and care for pepper seeds
Facts about plant science and gardening for kids
☀️ Seedlings grow strongest with 12–16 hours of light a day — sunlight or a simple grow light keeps stems from getting leggy.
📏 Gardeners often track growth by measuring height (cm or inches) and counting leaves; many pepper varieties go from seed to harvest in 60–90 days.
🌱 Most pepper seeds germinate in about 7–21 days when kept warm (around 25–30°C / 77–86°F).
🌶️ Peppers belong to the Capsicum genus and are members of the nightshade family, along with tomatoes and potatoes.
🧪 You can test seed viability at home by placing seeds on a damp paper towel — a quick science experiment to predict sprout rates.


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