Amsonia Hubrichtii

Amsonia Hubrichtii Care

Amsonia Hubrichtii

What is the plant

Noteworthy Characteristics. Amsonia hubrichtii, commonly called bluestar, Arkansas amsonia or Hubricht's amsonia, is an uncommon perennial that is native to the Ouachita Mountains in central Arkansas.It is very similar in appearance to the Missouri native Amsonia ciliata, except the leaves of A. hubrichtii are more narrow and thread-like.

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Humidity

High

Lighting

Part Sun

Temperature

18°C - 30°C

Hardiness zone

5 - 9

Difficulty

Easy

Toxicity

Poisonous

How to Care for the Plant

Water
Water slowly and deeply when the surface of the soil feels dry, allowing the soil to absorb as much moisture as possible without becoming soggy. Discontinue watering in fall.
Pruning
This plant grows fairly large but it will not need to be divided for many years. Cutting the stems back to within six to eight inches off the ground after flowering will result in fuller growth. Plants must be cut back in either the late fall or late winter to about 8 inches from the ground.
Fertilizer
After new leaves have emerged, apply a water-soluble fertilizer with 50-100 parts per million nitrogen at each or every other irrigation.

Disease diagnosis

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Sunlight
Sun/Part Shade.
Soil
An ideal soil would be made up of 45% minerals (sand, clay, silt), 5 % organic (plant and animal) material, 25% air and 25% water. The mineral portion would be loam (20 – 30% clay, 30 – 50% silt and 30 – 50% sand).
Temperature
After plants are watered in, the growing medium should be allowed to dry thoroughly between waterings. After new leaves have emerged, apply a water-soluble fertilizer with 50-100 parts per million nitrogen at each or every other irrigation. Maintain a growing temperature of 55°F-65°F.