Yellow butterwort

Yellow butterwort key facts

Growing Difficulty

Advanced

Lifespan

Short-lived perennial

Size

Rosette up to 15 cm across; flowers 1-3 cm across

Watering

Little or no fertilizer needed (catches small insects on sticky leaves)

Light & Placement

Wild plants grow in open pine woods and savannas. Give it a bright spot, with some shade in the height of summer.

Watering

Keep the mix damp at all times. It grows in drier spots than other southern butterworts, so do not keep it waterlogged.

Temperature & Overwintering

It keeps the same leaves all year and has no adaptations to freezing. Bring it in before frost, or protect it if grown outside.

Soil & Repotting

Grow in 3 parts peat, 1 part silica sand and 1 part perlite, or in pure peat. Replant into fresh mix if moss or cyanobacteria start to cover it.

Propagation

A short-lived perennial, so collecting seed is essential to keep it long term. It needs hand pollination with a small brush. Seed germinates in 2-4 weeks at above 15°C.

About Yellow butterwort

A carnivorous butterwort native to the southeastern US, prized for its unusually vivid yellow spring blooms. This short-lived perennial forms a yellow-green rosette up to 15 cm across and suits experienced growers.

7 things to know before growing Yellow butterwort

1. 1Grow It in Bright Light

   In the wild it grows in open pine woods and savannas. Give it a bright spot, with light shade during midsummer. Without enough light, the leaves stretch out and flowering suffers.

2. 2Soil: drainage and moisture together

   To mimic its sandy wetland habitat, use a fertilizer-free mix of peat moss and sand or perlite. Aim for a blend that drains well yet stays consistently moist. A ready-made carnivorous plant potting mix also works.

3. 3Keep the Mix Moist

   Keep the mix consistently moist. This species grows in drier spots than other southern butterworts, though, so don't let it sit waterlogged. Keep it somewhere with good airflow.

4. 4Same Leaves Through Winter

   Pinguicula lutea is a warm-temperate species that keeps the same kind of rosette all year and does not form a hibernaculum. It has no way to withstand freezing, so bring it somewhere frost-free for winter or protect it from frost if it stays outdoors.

5. 5Repot When the Mix Deteriorates

   When the surface of the mix becomes covered with moss or blue-green algae, repot into fresh mix. A blend of three parts peat, one part silica sand, and one part perlite, or pure peat, is commonly used. Remove the old mix and handle the roots gently.

6. 6Check the Base When Choosing a Plant

   When choosing a plant, check that the center of the rosette and the base aren't blackened or mushy. Firm, plump, vividly yellow-green leaves are a sign of healthy growth.

7. 7Skip the fertilizer

   As a carnivorous plant, Pinguicula lutea doesn't need fertilizer or supplemental feeding. Added nutrients can actually damage the roots, so a fertilizer-free mix plus whatever small insects it catches naturally is enough, especially when grown outdoors.

Frequently asked questions about Yellow butterwort

Q.Does it need to be fed insects to survive?

A.No — if it's kept outdoors or near an open window where small insects can land, it will catch enough on its own. The sticky leaves naturally trap and digest tiny prey for extra nutrients. Even indoors, there's no need to feed it by hand.

Q.What does it look like in winter?

A.Pinguicula lutea keeps the same kind of rosette all year and doesn't form a dormant hibernaculum. It can't withstand freezing, though, so bring it somewhere frost-free or protect it from frost in winter.

Q.Why is this species considered advanced to grow?

A.It's a short-lived perennial that can weaken from flowering too heavily, so it needs to be renewed from seed. It doesn't self-pollinate easily, which means hand-pollinating with a brush. It also can't tolerate freezing, so its winter location needs care.

Q.When does it flower, and how big are the blooms?

A.It flowers in spring, with blooms about 1 to 3 cm across held on a stalk rising above the rosette. The vivid yellow color is unusual for the genus Pinguicula, making it a distinctive sight among butterworts.

Q.Can it be grown indoors on a windowsill alone?

A.It can, as long as it gets plenty of light; without enough, growth becomes weak and stretched. Aim for a bright spot with light shade in midsummer, and add a grow light if the windowsill isn't bright enough.

Handy Growing Tools for Yellow butterwort

Learn more about Yellow butterwort in the encyclopedia

More in this category