For Indian-gum plants, watering frequency should be adjusted based on seasonal variations. During the growing season in spring and summer, water the plant every 7-10 days, allowing the top 1-2 inches of soil to dry out between waterings. In fall and winter, reduce watering to every 2-3 weeks, as the plant is dormant and requires less moisture. Ensure the soil is well-draining to prevent waterlogged conditions, which can lead to root rot. Adjust watering amounts based on the plant's size and environmental conditions, aiming to keep the soil evenly moist but not waterlogged. Monitor soil humidity regularly to prevent overwatering or underwatering.
Indian-gum
- Scientific name
- Silphium perfoliatum
Basic Information
- Asteraceae Family Silphium Genus Indian-gum Species
- Asteraceae > Silphium > Silphium perfoliatum
- 83%
- The Completeness of This Encyclopedia
Please help us complete the encyclopedia, Terrarium is a encyclopedia service to be completed with everyone in the world. Currently, this page is 83% complete. For more information on how to contribute, please click here.
- Forb/herb
- Perennial
- Height
- 100cm ~ 150cm
- Flower Color
- Leaf Color
- Anthesis
- summer
- Sunlight Exposure
Full Sun Long hours of sunlight from morning to afternoon Partial Shade A location in the shade of a tree or where either the morning or afternoon is shaded Full Shade A place where there is no direct sunlight
- Full Sun
- Hardiness Zones
This is an indicator to know to which zone each plant can winter. Knowing the zone of each plant gives you an idea of the cold temperature resistance when grown in the ground without a roof. 2: -42.7 to -40.0 3: -39.9 to -34.4 4: -34.3 to -28.9 5: -28.8 to -23.3 6: -23.2 to -17.8 7: -17.7 to -12.2 8: -12.1 to -6.7 9: -6.6 to -1.1 10: -1.0 to 4.4 11: 4.5 to 10.0
- 3-9
- Cold resistance
- Excellent
- Heat resistance
- Good
- Habitat of origin
- United States
- Growth Rate
- Normal
What is Indian-gum (Silphium perfoliatum)?
What is Indian-gum (Silphium perfoliatum)
Flower meaning
Indian-gum plants thrive in full sun to partial shade, requiring at least 6 hours of direct sunlight daily. They exhibit good cold tolerance, able to withstand temperatures as low as 20°F (-6°C). In hotter climates, they prefer some afternoon shade to prevent leaf scorching. During summer, it is essential to provide adequate water to prevent wilting. In winter, they can tolerate cooler temperatures but may benefit from protection during severe frosts. Indian-gum plants should be placed in well-draining soil to avoid waterlogging. They are best suited for USDA hardiness zones 9-11. Optimum temperatures range between 65-85°F (18-29°C). Excessive heat can cause stress, so providing some shade during peak sunlight hours is beneficial. Indian-gum plants are resilient to drought conditions but thrive with consistent watering.
Calendar of Indian-gum (Silphium perfoliatum)
Calendar
Indian-gum, also known as Silphium perfoliatum, is a perennial plant native to North America. It is characterized by its tall stature, reaching heights of up to 10 feet, with large, coarse leaves that appear to be fused around the stem. The plant produces bright yellow composite flowers that bloom in late summer to early fall, attracting pollinators like bees and butterflies. The flower heads are about 2 inches wide and have a striking appearance. Silphium perfoliatum is commonly referred to as cup plant due to the way its leaves form a cup around the stem, collecting rainwater. The plant's name, Silphium, is derived from the Greek word for resin, alluding to the gum-like sap it produces. It is relatively easy to grow in moist, well-drained soil and is often used in landscaping for its ornamental value and wildlife appeal. The plant also produces small, dry fruits that contain seeds for propagation.
How to grow Indian-gum (Silphium perfoliatum)
Watering
Indian-gum thrives in well-drained soils with a pH level between 6.0 and 7.0. It prefers sandy loam or loamy soils rich in organic matter. Fertilize Indian-gum with a balanced slow-release fertilizer in early spring before new growth begins. Apply fertilizer again in late spring or early summer to support active growth. Avoid fertilizing in late summer to prevent stimulating new growth that may not harden off before winter. Use a fertilizer with an N-P-K ratio of 10-10-10 or similar, following the manufacturer's instructions for application rates. Monitor soil quality regularly to ensure optimal conditions for Indian-gum's growth.
Soil and Fertilizer
Indian-gum is best potted in well-draining soil with good aeration. Ensure the pot has drainage holes to prevent waterlogging, which can lead to root rot. When planting, place the Indian-gum in a location with bright, indirect sunlight. Water thoroughly when the top inch of soil is dry, but avoid overwatering. Repot every 2-3 years in a slightly larger pot to accommodate root growth. Prune any dead or yellowing leaves to promote healthy growth.
Sunlight and Place
Indian-gum benefits from regular pruning to maintain its shape, promote new growth, and improve overall plant health. The best time to prune Indian-gum is during late winter or early spring before new growth emerges. Pruning should focus on removing dead, damaged, or diseased branches, as well as any crossing or rubbing branches to prevent potential issues. After pruning, it is essential to clean and sterilize pruning tools to prevent the spread of diseases. Additionally, providing adequate water and nutrients post-pruning can help the plant recover and thrive.
Advanced Information of Indian-gum (Silphium perfoliatum)
Pruning
Indian-gum can be propagated through seeds, cuttings, and division. Seeds should be sown in well-draining soil, kept moist, and placed in a warm, sunny location. Cuttings can be taken from healthy stems, dipped in rooting hormone, and planted in a soil mix suitable for rooting. Division involves separating the plant into smaller sections with roots attached and replanting them in individual containers. Using multiple propagation methods ensures a higher success rate and faster multiplication of Indian-gum plants. Harvesting seeds, cuttings, or divisions should be done carefully to avoid damaging the plant.
Planting and Harvest
Indian-gum is susceptible to various pests and diseases, including scale insects, leaf spot, and powdery mildew. Scale insects can cause yellowing of leaves and stunted growth. Regularly inspecting the plant for signs of infestation and using insecticidal soap can help prevent scale insects. Leaf spot, caused by fungal pathogens, results in dark spots on leaves, leading to defoliation. To prevent leaf spot, avoid overhead watering and ensure good air circulation around the plant. Powdery mildew, another fungal disease, appears as a white powdery substance on leaves, affecting photosynthesis. Pruning infected plant parts and applying fungicides can help control powdery mildew. Withering of Indian-gum can be caused by a combination of factors, including pests and diseases, improper watering, and nutrient deficiencies. Proper cultural practices, such as watering at the base of the plant and providing adequate nutrients, can help prevent withering.
Propagation
Indian-gum, a plant native to the United States, typically blooms in late spring to early summer. The flowers of Indian-gum are at their best during the month of May. The blooming period usually lasts for about 2-3 weeks, depending on environmental conditions. To extend the blooming time, ensure the plant receives adequate sunlight, water, and nutrients. Pruning faded flowers can also promote continuous blooming.
Pests and Diseases
Indian-gum varieties include A1, B2, and C3. A1 is known for its drought tolerance and compact growth habit. B2 is favored for its vibrant flowers and adaptability to various soil types. C3 is prized for its disease resistance and high yield potential. When selecting seeds, opt for plump, firm ones without signs of damage. For seedlings, choose those with healthy green leaves and sturdy stems. Ensure the roots are well-developed and not root-bound. Prioritize purchasing from reputable suppliers to guarantee quality.
Habitat of Indian-gum (Silphium perfoliatum)
Habitat
Toxicity of Indian-gum (Silphium perfoliatum)
Health Benefits
- edible
- Inedible
- Toxic
- No toxicity
NO DATA
Toxic for dogs and cats
NO DATA