Older varieties would not bloom in our cool season when the days are short and they had no heat tolerance. When Floridians visit parts of California and the west coast which have cool summer nights and moderate day temperatures they are amazed at the Lobelia. Plant Breeders have been working hard to make this popular annual more Florida Friendly. Recent introductions of Lobelia varieties like 'Techno Heat Upright Blue' have changed our cool season plant pallet to include these cool colors which bloom in the short days of winter. The new introductions are much more heat tolerant as their name implies. You will usually find them at your Florida Home Depot Garden Center from November through April in gallon containers. Use them as FILLERS in combination planter to complement bright yellows. Step them up into a large container and enjoy them as they fill out and stay completely covered in blue.