Search results
Results from the WOW.Com Content Network
The common sunflowers we see in cut flower bouquets are annuals, as are the sunflowers grown for seeds, but other species are perennials. Many perennial sunflowers are native to the prairie ...
Sunflowers come in all sizes, shapes and colors, from gigantic to knee-highs designed to fill a vase with happy flowers. We even have the California native sunflower (Helianthus annuus) decorating ...
Repotting a houseplant in winter may be necessary if the plant is showing signs of stress. To help you decide whether your plant needs a new pot or not, here are some signs that winter repotting ...
The inflorescence holds several flower heads. Each head is supported by a base covered in long, pointed phyllaries that bend back as the head ages and develops fruit. The flower head has a fringe of golden yellow ray florets , each two to three centimeters ( 3 ⁄ 4 – 1 + 1 ⁄ 4 in) long, and a center filled with curly yellow and brown disc ...
Its leaves are thick and stiff, tending to droop towards the end. The sunflower is perennial, and flowers for about two to three weeks in early October. [5] [6] Schweinitz's sunflower spreads through dispersal of seeds without a dormant period. One plant generally produces 3-6 yellow flower heads.
Of California's total plant population, 2,153 species, subspecies, and varieties are endemic and native to California alone, according to the 1993 Jepson Manual study. [4] This botanical diversity stems not only from the size of the state, but also its diverse topographies , climates, and soils (e.g. serpentine outcrops ).
For premium support please call: 800-290-4726 more ways to reach us
The BBCH-scale (sunflower) identifies the phenological development stages of the sunflower (Helianthus annuus). It is a plant species specific version of the BBCH-scale . Phenological growth stages and BBCH-identification keys of sunflower