Slender Milk-Vetch

Slender Milk-Vetch should be watered frequently during its growing season (April through October) to ensure that it remains hydrated. Beginning in late April, aim to water the plant 2 to 3 times a week, or when the top inch of soil appears dry. During hot summer months, increase watering to 3 to 5 times a week; and during periods of prolonged drought, you may need to water every 2 to 3 days. During the plant’s dormant season (November through March), water once a week (or every other week if moisture is sufficient).

Slender Milk-Vetch (Astragalus gracilis) is a long-lived perennial plant species native to the southwestern United States and northern Mexico. This species thrives best in full sunlight and requires at least 6 to 8 hours of unfiltered sun per day for optimal growth. Sunlight is particularly important in the spring and summer when most of this species' growth occurs, so full sun should be available during this time. During autumn and winter, Slender Milk-Vetch may benefit from afternoon shade when temperatures are high. In general, the plant will do well with full sun all year round.

Slender Milk-Vetch (Astragalus gracilis) should be pruned twice per year, in early spring and early summer. Pruning should be conducted lightly in order to remove any overgrown and congested growth that can reduce air flow and light penetration. Early spring after new growth begins is the ideal time to remove any winter die-back and crossing branches. During the early summer prune again to maintain desired shape and size. Always use clean, sharp tools to avoid tearing and damaging the plant. Trim outside foliage and dead stems to encourage better air circulation and overall shape. Always remember to make your pruning cuts at a slanted angle that is slightly above a bud to increase airflow and reduce the chances of infection.