Yellow Passionflower (Lutea)

The Yellow Passionflower (Lutea) is generally described as a perennial vine or forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring . The Yellow Passionflower (Lutea) has green foliage and inconspicuous yellow flowers, with a smattering of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the summer, with fruit and seed production starting in the fall and continuing until fall. Leaves are not retained year to year. The Yellow Passionflower (Lutea) has a moderate life span relative to most other plant species and a rapid growth rate. At maturity, the typical Yellow Passionflower (Lutea) will reach up to 16.4 feet high, with a maximum height at 20 years of 16 feet.

The Yellow Passionflower (Lutea) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, seed. It has a slow ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -23°F. has low tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Rapid
General Type Vine, Forb/herb
Growth Period Spring
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Summer
Displays Fall Colors No
Shape/Growth Form Single Stem
Drought Tolerance Low
Shade Tolerance Tolerant
Height When Mature 16.4
Vegetative Spread None
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance Low
Fruit/Seed Seasonality Fall Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Seed
Moisture Requirements Low
Cold Stratification Required No
Minimum Temperature -23
Soil Depth for Roots 12
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Resprout Ability Yes
Responds to Coppicing No
Growth Requirements
pH Range 4.5–8 pH
Precipitation Range 38–38 inches/yr
Planting Density 1746–3450 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 12
Minimum Frost-Free Days 160 day(s)
Salinity Tolerance None
CaCO3 Tolerance Medium
Sustainability & Use
Leaf Retention No
Palatability Medium
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA