Helianthus gracilentus aka Slender Sunflower

Taxonomy ID: 13559

Helianthus gracilentus is in the daisy family, Asteraceae. Its home range runs from California into Mexico's Baja California Norte. The RHS accepts this name for the plant. It also lists it as not native to Britain or Ireland. This small shrub grows just a little wood. Its loose mound reaches about 3 feet (0.9 metres) tall. It can grow as wide as it is tall. This gives it a broad form, not an upright one. Gaps show between the leafy stems. The mound is open, not dense.

The gray bark has shallow grooves along its surface. Young twigs are red-brown and bear a coat of gray fuzz. The stems grow little wood, though they form a shrub. Leaves grow in pairs, on opposite sides of each stem. Each leaf is simple, not split into leaflets. The blades range from lance-shaped to somewhat egg-shaped. They reach 0.33 feet (0.10 metres) in length. Leaf edges may be smooth or have fine teeth. The top of each leaf is yellow-green. The paler side below bears small gland dots. Leaves may stay green or fall off late.

Bright yellow flower heads bloom from late spring through early fall. Each head looks like a daisy. It spans about 0.17 feet (0.05 metres). The blooms have a chocolate scent as well as bright color. Long stalks hold the heads at the tips of twigs. They lift the blooms well above the leaves. The heads stand clear of the loose mound. Yellow heads stand out against the pale leaves. This contrast gives the plant its look when in bloom. Its long bloom season runs from spring into the start of fall.

The fruit forms a group of small achenes. Each achene, a type of fruit, is about one-eighth of an inch long. Each bears two tufted hairs. These fruits are far smaller than the broad flower heads. The sources describe the plant's form and blooms. They give no guide to care in a garden. They do not state its light or water needs. Nor do they state soil needs or cold limits. They give no pest or disease account for this species. No evidence here confirms parts safe to eat or medicinal uses. Nor does it confirm safety for people or pets. The scent and raised yellow blooms are its main known garden features.

Common names

Slender Sunflower

More information about Slender Sunflower

What is the growth pattern and size of Slender Sunflower?

New growth will sprout from the top of the Slender Sunflower as it grows vertically.

What is the region of origin of Slender Sunflower

Slender Sunflower’s native range is the Americas.

What are the water needs for Slender Sunflower

Slender Sunflower should be watered regularly, allowing the soil to dry out between waterings.

What is the right soil for Slender Sunflower

Slender Sunflower loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

What is the sunlight requirement for Slender Sunflower

Slender Sunflower requires abundant, bright, and direct light to thrive. The best placement for this plant is within one foot of a window to ensure it receives enough light. If you live in an area with more extreme weather, such as hot summers or cold winters, you may need to adjust the placement of the plant accordingly. During hot summer months, it is important to place the plant away from full sun, as this can cause the leaves to yellow or burn. During cold winter months, it is best to move the plant closer to the window to take advantage of the extra light that can help it survive. By keeping an eye on the current weather in your area, you can make sure your Slender Sunflower is always in the right place to thrive.

What's the right humidity for Slender Sunflower

The Slender Sunflower does not demand additional humidity levels. Water is mostly absorbed by the roots of plants, rather than their leaves, and the best way to provide humidity to your plants is through watering the soil.

How to fertilize Slender Sunflower

Once the Slender Sunflower has doubled in size or after a year has passed, it should be moved to a new pot. By replacing the soil with fresh potting soil containing all the vital nutrients, your plant will receive all the sustenance it needs, negating the requirement for fertilizer. It's important to remember that plants get their energy from the sun, not fertilizer.

Is Slender Sunflower toxic to humans/pets?

No verified data on the toxicity of this plant exists within Ploi's records. Should you, someone in your family, or your pet ingest plant material with an unknown toxicity level, it is recommended to seek medical advice.

More info:
Wikipedia • GBIF

Sources

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