Harvesting of Helianthus annuus typically begins in late August or early September.
common sunflower
Helianthus annuus
The Common Sunflower (Helianthus annuus) is a bright and beautiful annual plant from North America, prized for its stunning yellow and orange inflorescence. With its deep green foliage, the sunflower stands up to 4 metres tall and has daisy-like petals that give it a sunny and cheerful appearance. It is incredibly versatile and easy to grow, performing well in almost all kind of soils and climate. The Common Sunflower is an attractive bee-pollinator, adding colour and texture to any garden. It is also edible and the seeds can be used in baking and other culinary purposes.
Cycle:
Annual
Watering:
Minimum
Propagation:
Seed Propagation,Cutting,Layering Propagation,Division,Grafting Propagation
Hardiness Zone:
2 - 11
Flowers:
Yellow, red, mahogany, bicolor rays with brown to purple center disk Flowers
Sun:
Full sun
Fruits:
brown,gray,black,gray Fruits Ready In Autumn
Edible:
Yes
Leaf:
Yes
Leaf Color:
green
Growth Rate:
High
Maintenance:
Low
Drought Tolerant:
Yes
Care Level:
Medium
watering
Sunflowers need a lot of water to thrive -- about 1-1.5 inches per week. To maintain ideal soil moisture, water your common sunflowers deeply when the top 1-2 inches of soil is dry. Monitor your soil moisture levels consistently so you can adjust your watering schedule accordingly. Soak the ground and about 3 feet of air around the plants every 5 to 7 days.
sunlight
Common sunflowers require a minimum of 6 hours of direct, unfiltered sunlight throughout the day. However, for optimum growth, they should receive 8 to 12 hours of direct sunlight, with midday being the best time for sun exposure. Planting in a south-facing area is the best for common sunflowers as it is likely to get maximum exposure of the sun’s rays throughout the day.
pruning
Common sunflowers prefer well-drained soil and full sun, and can tolerate some light shade. Pruning should be done after the first round of blooms have faded, generally in the late summer or fall after the seed heads have been harvested. For best results, prune the sunflower plants back to about 18 to 24 inches in height. Be sure to remove all dead, diseased, or damaged stems and branches from the sunflower plants. Prune away any weak or spindly stems and any stems that are not producing blooms. Cut the plants down to their base, close to the ground and move on to the next plant. Perform any necessary fertilizing after pruning and continue to water and fertilize your sunflowers properly. Regular pruning will encourage the growth of new buds and blooms for the next growing season.
Season
Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit
Starts Flowering
Common sunflowers typically start flowering in late July or early August.
Harvest Fruit
Harvesting of Helianthus annuus typically begins in late August or early September.
