Astragalus tragacantha
Tragacanth
Description
Source: leafsnapAstragalus tragacantha, commonly known as astragale de Marseille or coussin-de-belle-mère, is a species of milkvetch in the family Fabaceae. The plant is about 10 to 25 cm in height with white, purple tinged flowers that bloom in April and March. Tragacantha grows in sandy soil around beaches and is native to France, Spain, and the Mediterranean.
Care Guide
💧 Water
Goat's thorn milk vetch flourishes in arid regions due to its excellent drought tolerance. It should be watered every 2-3 weeks to prevent over-saturation. This plant requires well-draining soil to replicate its natural dry environment, making it ideal for low-maintenance outdoor gardening.
How should I water my Goats thorn milk vetch plant in the best way?
To ensure excellent root development, place a garden hose at the base of the plant. Avoid spraying the leaves directly, and if the leaves are exposed to direct sunlight outdoors, they will need more water. You can use bubblers or soaker hoses to moisten the roots, and when adding or removing plants, use soaker hoses that cover the entire garden or bed to encourage deep root growth. After watering, drain any excess water and wait for the soil to dry before watering again. Watering at ground level will help prevent diseases. On a sunny day, consider spraying the entire bush with water. Keep in mind that whether the plant is in a pot or in the ground, Goats thorn milk vetch prefers deep watering rather than light sprinkling.
What should I do if I give Goats thorn milk vetch too much or too little water?
If a Goats thorn milk vetch is overwatered, it may show signs such as yellowing leaves, leaf drop, and wilting. The plant may also appear dull and unhealthy, with mushy stems. To address these signs, it is recommended to adjust watering frequency. Wilting can also indicate under watering, with leaves becoming crispy and dry. In such cases, checking the soil moisture is important. If the soil is dry, full watering is needed. However, even with enough water, the plant may still have dry, yellow leaves due to root damage. The yellowing will eventually cease as the plant recovers. When growing Goats thorn milk vetch indoors, consistently monitoring moisture levels is essential to avoid overwatering. If black spots appear, allow the soil to dry by withholding water for a few days. Overwatering can lead to root rot, so be cautious and avoid excessive soil saturation. When planting the vetch outdoors, ensure the soil is adequately hydrated by checking its moisture level. If the soil is too dry, underwatering may be the issue, and proper watering is necessary for plant recovery.
How frequently do I need to water my Goats thorn milk vetch plant?
The Goats thorn milk vetch prefers deep and infrequent watering, especially when planted in pots. In pots, the soil dries out faster due to limited water storage. In cold regions, water every 3 to 5 days, preferably early in the morning when the soil is dry. Check the soil inside the pot - if the top 2-3 inches are dry, it's time to give the plant a full watering. During hot days, check the soil moisture daily to prevent it from drying out. If you have a garden, irrigation is necessary. In hot climates, water once a week when about 2 to 3 inches of soil become too dry. Avoid watering if the plant has received ample rain to prevent root rot. Goats thorn milk vetch typically grows in spring and fall. Use mulch about 3 to 4 inches deep when outdoors to conserve water. Sandy soil requires more frequent watering, while clay soil requires less frequent watering. Mark the watering date on the calendar and watch for drooping leaves as a sign that watering may be needed.
How much water should I give my Goats when feeding them thorn milk vetch?
The Goats thorn milk vetch generally needs about a gallon of water on a regular basis. When watering potted plants, it's best to water them deeply until you see water dripping from the bottom of the pot. Allow the soil to dry before watering again. You can use a water calculator or moisture meter to determine the amount of water your plant receives in a week. During the flowering period, provide plenty of water, but let the moisture evaporate afterwards to avoid root rot. If Goats thorn milk vetch is planted outside and receives sufficient rainfall, it may not need additional watering. However, when the plant is young or newly planted, ensure it receives 1-2 inches of rain per week. As the plant grows, it can rely solely on rainfall. Only when the weather is excessively hot or when there has been no rainfall for 2-3 weeks should you consider giving a full watering to prevent heat damage. Additional watering will be necessary during extended dry spells.
Do I need to change how often I water my Goats thorn milk vetch depending on the time of year or the weather?
To ensure the proper growth of the Goats thorn milk vetch, it is important to provide it with the right amount of water depending on the season. During the spring and fall, the soil should be kept moist but not overly wet. Alternating between dry and moist soil conditions will promote healthy growth. In the summer, hot weather and lack of rainfall can cause the water to evaporate quickly, so extra watering might be necessary to keep the plant moist. During the winter, less water is generally needed as the plant becomes dormant. It is beneficial to use well-draining soil mixtures and terracotta pots to aid in water evaporation. Once the plant starts to leaf out and go dormant, watering can be skipped and rely on natural rainwater. Good drainage is crucial throughout the year to prevent water stagnation and root issues. When growing the plant in pots, regular watering is essential, especially during the summer. Deep soaking once or twice a week is preferable to shallow sprinkles. Avoid allowing the plant to dry out completely in the fall and winter, even during dormancy. Excessive water can be harmful, so ensure proper drainage to prevent root rot. Using mulch can help conserve water and promote healthy blooming.
☀️ Light Full sun
Goat's thorn milkvetch originates in open habitats, such as sunlit meadows and forest margins, where light is plentiful. It prefers full sun but can endure partial sun, demonstrating adaptability to a range of light conditions.
What are the sunlight requirements for Goats thorn milk vetch?
Goats thorn milk vetch thrives in environments that receive a significant amount of sunlight, such as sunny meadows and forest edges. It requires full sun, which means it should receive above 6 hours of sunlight daily. However, it can also adapt and grow well in partial sun, with about 3-6 hours of sunlight. It's essential to watch how sunlight moves through your garden and choose spots that offer a perfect balance of light and shade to ensure the plants are happy and healthy.
How does artificial lighting support the growth of indoor plants?
When natural sunlight is insufficient, especially during the winter months or in less sunny spaces, artificial lighting serves as a crucial solution for the growth of indoor plants. Artificial lights can promote faster and healthier growth by providing the necessary wavelengths of light. LED lights are recommended due to their ability to offer specific wavelengths needed by plants. Full sun plants require 30-50W per square foot of artificial light, partial sun plants need 20-30W per square foot, and full shade plants need 10-20W per square foot. The light source should be placed 12-36 inches above the plant to mimic natural sunlight conditions, and most plants will require 8-12 hours of light per day to mimic natural daylight hours effectively.
What are some common symptoms of light deficiency in Goats thorn milk vetch?
When Goats thorn milk vetch is placed in suboptimal lighting conditions, it may exhibit several symptoms indicating light deficiency. These symptoms include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, and conditions such as chlorosis, which is the yellowing of leaves due to chlorophyll breakdown. Additionally, intense sunlight exposure can lead to sunscald, leaf curling as a defense mechanism, wilting due to increased water loss, and leaf scorching, characterized by brown, dry edges on leaves.
What solutions can be applied to improve light conditions for Goats thorn milk vetch?
To optimize light conditions for Goats thorn milk vetch, gradual adaptation to sunlight is recommended. For indoor plants, gradually move them to sunnier locations each week until they receive at least 6 hours of direct sunlight daily, utilizing a south-facing window for maximum exposure. Artificial lighting, such as desk or ceiling lamps or professional grow lights, can be used for at least 8 hours daily to provide additional light. For outdoor plants, moving them gradually to better sunlight spots can prevent sunburn. Additionally, removing obstructions by pruning or transplanting to sunnier locations with good drainage can significantly improve sunlight access. It's important to note that affected parts may not recover, but new growth will be healthy with improved light conditions.
🌡️ Temperature 15–35°C
💨 Humidity
🪴 Soil 6-7
🌱 Fertilizer
Fertilize your Goats thorn milk vetch in early spring to encourage healthy growth. Regular feeding improves overall vigor, producing robust growth, greater resilience to harsh conditions, and enhanced resistance to diseases and pests. Follow a consistent fertilization schedule for your Goats thorn milk vetch to preserve lush foliage with deep, vibrant color.
🪴 Pot & Repot
✂️ Pruning
Goat's-thorn milk vetch has thorny stems and dense foliage, so it requires pruning in early spring. Remove any dead or diseased branches to encourage new growth, and thin out the interior to improve air circulation and light penetration. Always use clean, sharp tools to promote healthy and vigorous blooms.
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
Characteristics
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Astragalus
- Family
- Fabaceae
- Hardiness Zone
- 7-10
- Mature Height
- 10 cm to 25 cm
- Mature Spread
- 40 cm to 61 cm
- Leaf Color
- Gray, Light Gray
- Leaf Type
- Deciduous
- Flower Color
- Pink
- Flower Size
- 1.02 cm to 1.52 cm
- Bloom Time
- Late spring, Early summer
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Mid summer, Late summer
- Native Area
- Spain, Portugal, France