Blue Flax Seeds

Blue Flax seeds don’t like indoor start, so it’s better to direct sow them into the ground. They require cold stratification for 30 days before the sowing to improve germination. Press seeds lightly into the soil surface. Blue Flax flower seeds need light to germinate, so don't bury them deeper than 1/8 inch. At soil temperatures of 55–65°F (13–18°C), expect sprouts in 20–25 days. You can also sow perennial Blue Flax seeds in fall and let winter do cold stratification naturally, Wild Blue Flax seeds push up in spring as soon as the ground warms. 

Blue Flax flowers need full sun for at least 6 hours a day. The flax plant is not picky about soil quality, it grows well in sandy, rocky, or gravelly ground, provided it is well drained. Water young plants consistently for the first 4–6 weeks while roots establish, then back off. Once it's settled in, Blue Flax handles dry spells well and rarely needs irrigation except during prolonged drought. 

After the first main flush of blooms fades, cut plants back by about a third — this often triggers a second round of flowering later in the season. Outside of that, Blue Flax is genuinely low-maintenance: it requires no fertilizing, no staking, no coddling. It self-sows freely, which means a single planting tends to sustain itself for years. For seed harvest, watch the small round capsules — collect them when they turn brown and dry.