Starting with plants: We have a large selection of sunflower starts beginning in early May. If continuous bouquet harvest is your goal, we recommend planting seeds every 10-14 days, or selecting varieties with different maturity dates. Thin seedlings 4-24” apart depending on the eventual size of the variety. Birds, cutworms or slugs may eat new seedlings so take precautions to protect them, or plant some extra seed. Seeds can be directly planted mid to late April through May. Starting from seed: You can get a jump start on your sunflowers by starting them indoors, in 4” pots, under lights 2-3 weeks before planting outdoors (generally early April). If you allow your sunflowers to drop seeds where they grew, you are likely to get volunteers the following season! These varieties come back every year reaching lofty heights of 6-7’ tall with masses of 2-4” yellow flowers.Īs the name might imply, sunflowers require full sun (at least 8 hours), fertile soil and deep infrequent water to thrive. There are a few perennial types: Helianthus angustifolius ‘Gold Lace’, Helianthus ‘Flore Pleno’ and Helianthus ‘Lemon Queen’. The song is pretty cool, but the sunflowers are even better, and less likely to annoy your neighbours. These varieties tend to be multi-stemmed, 4-6” flowers, with multiple flowers per branch.ĭid you know sunflowers exhibit a characteristic called heliotropism? This means the flowers will move to face the sun through the course of a day. Plants grow 8-12” in containers, 35-42” in the ground.Ĭut flower varieties come in a wide array of colors and forms. Teddy Bear - Unique, fully double, cushion-like, 4-5” golden flowers.Sunsation - Pollenless, 12-15” tall classic yellow flowers with brown centers.Solita - Large 6” golden-yellow, pollenless flowers with pale centers on 14” tall plants.Flower petals range from lemon yellow to rusty bronze. Paquito Colorado Mix - Bushy, floriferous plants grow 18-20” tall and wide. ![]() Great for cut flowers, borders and containers.
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