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The Seed Bank Directory
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Non-GMO seed guides, growing how-tos, crop planning, best practices, and honest product reviews — one blog, everything you need to grow.

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🌱 Non-GMO Seeds Guide

Non-GMO vs Heirloom Seeds: The Complete Guide

What do Non-GMO, heirloom, hybrid, and GMO actually mean — and why does it matter for your garden? A clear, honest breakdown with a full comparison table.

📖 6 min read📅 2026
Read the full guide →
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Seeds & Planting

How to Grow an Avocado Tree from Seed — Complete 2026 Guide

Step-by-step from pit to tree — sprouting methods, potting, light, watering, pruning, and the Canadian indoor growing method.

📖 8 min read📅 April 2026
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Garden Guide

Best Raised Bed Kits 2026: Reviewed & Ranked

We evaluated 12 kits — budget wood, cedar, and galvanized steel. The honest guide to what is worth buying and what fails.

📖 7 min read📅 2026
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Ontario Guide

Best Seeds for Ontario Gardeners: Zone-by-Zone Guide 2026

From Windsor (zone 7a) to Thunder Bay (zone 4b) — top varieties for every Ontario zone with frost dates.

📖 9 min read📅 2026
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Seed Bank Directory Blog

How to Save Seeds From Open-Pollinated Vegetables the Right Way

Seed saving works best when you start with open-pollinated non-GMO varieties and follow a clean system for selection, drying, and storage.

Seeds9 min readUpdated April 2026

A practical guide to seed saving from tomatoes, beans, peas, lettuce, and peppers without accidental crosses or poor storage.

Why seed saving fits a non-GMO garden

Saving seed makes the most sense with open-pollinated varieties because they can reproduce true to type when pollination is controlled. That lets you keep plants you liked for flavour, productivity, earliness, or storage quality. Over time, your saved seed can become better adapted to your own conditions.

Not every crop is equally easy. Self-pollinating plants such as beans, peas, tomatoes, and lettuce are usually the easiest place to begin. Crops that cross readily, such as squash or corn, require more distance and planning.

What to save from first

Easiest cropsWhy they are good starter crops
Beans and peasUsually self-pollinating and simple to dry on the plant
TomatoesEasy to select good fruit from healthy plants
LettuceSimple once plants bolt and form seed heads
PeppersPossible in home gardens if varieties are separated reasonably well
Skip hybrids for seed saving if your goal is consistency. Hybrid offspring often vary a lot from the parent plant.

Choose the right parent plants

Do not save seed from the first plant you notice. Save from the healthiest, most productive plants that match the traits you actually want. Avoid weak, diseased, or off-type plants. The goal is not just to get any seed. The goal is to keep the best line possible for your garden.

  • Tag strong plants before harvest time
  • Remove obvious off-types
  • Save from more than one plant when possible to keep some diversity

Prevent accidental crossing

Some crops mostly self-pollinate, while others cross with nearby plants. The farther apart varieties are, the lower the risk. Home gardeners can also use timing, bagging, or simply grow one variety of a crop for seed each year.

For tomatoes, crossing is usually low in many home gardens. For peppers, it is more common. For squash, isolation matters a lot because bees move pollen freely between compatible types.

Harvesting, drying, and storage

  1. Harvest seed only when it is fully mature.
  2. Clean away fruit flesh, chaff, or debris.
  3. Dry seed thoroughly but gently, away from high heat.
  4. Store in labelled paper envelopes or jars with the crop and year.
  5. Keep seed cool, dark, and dry.

For wet-seeded crops like tomatoes, fermentation can help remove the gel coat before drying. For dry-seeded crops like beans, leave pods to mature well before shelling.

How long saved seed lasts

Seed longevity depends on crop and storage. Lettuce and onion seed generally loses vigour faster than beans or tomatoes. Rather than guessing, do a quick germination test before sowing older seed: place ten seeds in a damp paper towel, keep warm, and count how many sprout.

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