HOW TO GROW LOBELIA INFLATA
Best to direct sow in the warm soil of summer or with first fall rains. Germinates in the Fall, over winters, flowers next spring early summer. Over wintering annual or annual. Do not grow as spring annual for best production. Germination is irregular. If you try to grow it as an annual in one season, it bolts early with low plant material yield. Cold stratify 2 months before starting indoors. Grows in disturbed habitats cliffs, balds, or ledges, meadows and fields, ridges or ledges, shores of rivers or lakes. Seeds require light to germinate, press into soil, do not cover. Likes heat to grow. Soil pH 6.1-7.8. Hardiness zones 4-9. Biennial.
Days from maturity calculated from the date of seeding. Average 500,000 seeds per ounce. Usual seed life 3–4 years.
Planting Depth surface requires light
Soil Temp. Germ. 65-75˚F stratify
Days to Germ. 2–4 weeks
Plant Spacing 12-18”
Row Spacing 24-36”
Days To Maturity 90-120
Full Sun, Moist Well Drained