Expert Tips for Successful Seed Planting and Selection

Even seeds from reputable sources carry risks—a seed may look perfect yet lack the vitality to produce a robust plant. Saving seeds from your own plants allows careful selection. When choosing seeds from aster plants, for example, evaluate the entire parent plant, not just the blossom. A weak, straggly plant might produce one beautiful flower, but its seeds will likely yield similar weak offspring.

Key Criteria for Seed Selection

Assess the whole plant: Is it sturdy, well-shaped, symmetrical, and abundant in quality blooms? Professional seedsmen often mark selected blossoms with strings—examining these plants reveals the traits they prioritize.

Size Matters: Choosing the Best Seeds

Larger, plumper seeds contain more stored nutrients (cotyledons) to support the embryonic plant during early growth. Just as undernourished children struggle, seedlings from small, thin seeds may fail due to insufficient food reserves. This stored nourishment sustains the plantlet until roots develop.

Common Seed Problems

• Impurity: Seeds mixed with similar-looking weed seeds are hard to detect. Large seeds can be cleaned manually; small seeds are nearly impossible to purify.
• Viability: Seeds may be immature, frozen, or too old. Each species has a viability limit. Germination testing reveals the percentage likely to sprout.

Planting Strategy Based on Seed Size

Low germination rates (e.g., 50%) are acceptable for small seeds sown thickly in drills—quantity compensates. For large seeds like corn planted at precise intervals, high germination (70%+) is essential. Lettuce seeds at 50% may suffice; beans at 70% require better vitality assurance.