Grindelia squarrosa, also known as a curly-top gumweed or curlycup gumweed, is a small North American biennial or short-lived perennial plant.
Curlycup gumweed has strong resistance to disease and is generally not vulnerable to illnesses. Still, it can be affected by pests and diseases present in its environment. Such infections are typically mild. Regarding care, the plant requires moderate maintenance. It should be pruned on a regular basis to preserve its appearance and support healthy growth. Applying fertilizer can also encourage blooming. Curlycup gumweed is appropriate for anyone who has outdoor space, like a garden or patio, and does not demand extensive gardening experience. It may need extra attention if cultivated indoors.
How to keep Grindelia Nuda.
Light
Curlycup gumweed grows best when exposed to abundant sunlight throughout the day. It can tolerate lower light levels, but that may slow its growth and development because it originates from very sunny habitats. Conversely, excessive light does not harm the plant.
Temperature
Curlycup gumweed is adapted to a temperate climate and prefers temperatures between 68 to 95 °F (20 to 35 ℃). It naturally thrives in moderate environments. During periods of extreme heat or cold, careful temperature management is recommended for optimal growth.
Fertilizer
Curlycup gumweed are considered heavy feeders with regard to nutrients. They need frequent, low doses of nitrogen and potassium fertilizers and periodic applications of phosphorus, micronutrients, sulfur, and magnesium to maintain good growth and bright coloration. Continuous fertilization throughout the growing season is needed to prevent deficiency symptoms and maintain optimal growth.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Biennial, Perennial, Annual
- Genus
- Grindelia
- Family
- Asteraceae
- Hardiness Zone
- 3-7
- Mature Height
- 15 cm to 91 cm
- Mature Spread
- 61 cm
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- Yellow
- Flower Size
- 2.54 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Autumn
- Harvest Time
- Mid summer
- Native Area
- Mexico
