Phlomoides tuberosa (syn. Phlomis tuberosa), the sage-leaf mullein, is a perennial herbaceous flowering plant in the family Lamiaceae, native to China, Kazakhstan, Kyrgyzstan, Mongolia, Russia; SW Asia and Europe. Enlarged, tuberous roots give rise to erect stems to 150 cm bearing purple-red flowers.
Tuberous Jerusalem sage is fairly resistant to disease and generally not prone to illnesses. However, it can be vulnerable to pests and diseases present in its environment. These issues are usually mild. In terms of care, the plant requires moderate maintenance. It should be pruned regularly to maintain a neat appearance and healthy growth. Fertilizing can also help encourage flowering. Tuberous Jerusalem sage is suitable for anyone with outdoor space, such as a garden or patio, and does not require extensive experience in plant care. It may need more attention when grown indoors.
How to keep Phlomis Tuberosa.
Light
Tuberous Jerusalem sage generally does best with plentiful sunlight. Native to areas characterized by strong light, it can grow vigorously and reach optimal condition. However, too much exposure to very intense light may be harmful. Conversely, a shortage of sunlight can also impede its healthy growth and development.
Temperature
Tuberous Jerusalem sage is native to temperate regions and does best at temperatures between 41 to 95 °F (5 to 35 ℃). Because of its resilience, in winter consider relocating it indoors to a cooler area if temperatures fall below this.
Fertilizer
The best time to fertilize a Tuberous jerusalem sage is in early spring, when it is coming out of dormancy and beginning active growth. Fertilizing supplies essential nutrients for healthy development. Although Tuberous jerusalem sage has relatively low fertilizer requirements, giving it fertilizer annually can improve its survival and encourage better, longer-lasting flowers.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Phlomis
- Family
- Lamiaceae
- Hardiness Zone
- 4-10
- Mature Height
- 0.61 m to 1.22 m
- Mature Spread
- 49 cm
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- Pink
- Flower Size
- 2.54 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Autumn
- Harvest Time
- Late summer, Early fall
- Native Area
- Turkey, Austria, Czech Republic, Slovakia, Bulgaria, Armenia, Greece, Croatia, Ukraine, China, Russia, Serbia, Hungary, Germany, Kyrgyzstan, Kazakhstan, Mongolia, Iran, Albania, Azerbaijan, Romania
Other names.