Great Blue Lobelia

Great Blue Lobelia (Lobelia siphilitica) - A late summer blooming and hardy perennial to zone 3a. This species thrives in moist areas and makes a great option for planting near ponds, lakeshores, and low spots in your garden. We have a stand in our heavier clay-loam soils that has thrived. It prefers cool, moist conditions and does not tolerate drought at all, as a result, prolific blooming begins after the heat of summer until very late in the fall. Delicate blue flowers attract butterflies, honeybees, hummingbirds and make a wonderful finale to the growing season. Deer tend to not bother browsing this plant. The floral spikes also make a great cutflower.

200 seeds per packet 

Caution: All parts of this plant are toxic if ingested. Keep away from children and pets.

Growing Instructions: Cold-moist stratification is required. Mix seeds with lightly moistened vermiculite, perlite, or peat moss, seal in a bag, and refrigerate for 4–6 weeks.

Sow indoors 5–6 weeks before last frost by pressing seeds onto the soil surface, do not cover, as light is needed for germination. Keep soil consistently moist. Seeds germinate in 14–21 days.

Can also be direct sown in late fall or winter for natural stratification. Transplant or thin to 30–45 cm apart in a moist, partially shaded location.

Days to Germination: 7 - 20

Plant Spacing: 12" (30cm)

Plant Height: 24 - 36" (60 -90 cm)

Features:

Perennial

Hardiness Zones: 3 - 8

Bloom Time: Late Summer to Fall

Light Requirements: Full Sun

Attracts Bees, Hummingbirds & Butterflies

Heat & Drought Resistant

Tolerates Heavy Soils

Great as Cut or Vase Flower