Species obedient plant Guide
cluster of small, purple, tubular flowers with green stems, and purple buds

obedient plant

Physostegia virginiana

Also Known As - false dragonhead

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Seed Propagation

Hardiness Zone:

3 - 9

Flowers:

Pink, white Flowers

Sun:

Full sun

Soil:

Loamy Humus

Fruits:

green,brown Fruits Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Moderate

Drought Tolerant:

Yes

Invasive:

Yes

Care Level:

Medium

watering

The obedient plant (Physostegia virginiana) should be watered frequently during the active growing season (spring through late summer). Aim to keep the soil evenly moist by giving it a deep watering once a week, allowing water to penetrate the soil rather than just moistening the surface. During the hot months of summer, it may be necessary to water the plant even more, about every 3-5 days. In autumn and winter, reduce watering to every 10-14 days, or until the top inch of soil is completely dry. Make sure to check the soil regularly to ensure it's not too dry or overly saturated.

sunlight

The obedient plant (Physostegia virginiana) requires 6 to 8 hours of sunlight, with bright and direct light being preferable. The best times to provide the required amount of light would be during the early part of the day while the sunlight is still somewhat strong in the midday. During the peak of the summer season, it will not be a problem, as the sun is usually high up in the sky. However, during the early spring months or late fall, when the sun is lower in the sky, you may need to provide shade to protect the plant from too much light.

pruning

The obedient plant (Physostegia virginiana) should be pruned in early spring before new growth emerges. Generally, it should only need to be pruned lightly, although in some cases, it may require a heavier pruning to control size or shape. Pruning should only involve removing dead flowers, damaged wood, and spent foliage or stems. If desired, prune stems to the ground, which will promote a more compact, bushy shape. Avoid pruning into the old wood, as this could delay flowering or cause stress to the plant. When pruning, ensure that all tools, such as pruning shears, are disinfected with rubbing alcohol or a 10% bleach solution to prevent the spread of disease.