黃挖耳草（Pinguicula lutea）

黃挖耳草（Pinguicula lutea）的基本資料

栽培難度

適合高級者

壽命

壽命短的多年生植物

體型

蓮座狀葉叢直徑達15釐米，花直徑1～3釐米

澆水

幾乎不需要肥料（葉上的粘液捕捉小蟲）

光照・擺放位置

自生地為松林空曠地和草原。在明亮地方栽培，盛夏時半日陰最佳。

澆水

用土須常保濕潤。因其生長於南方其他挖耳草更乾燥的地方，故勿使過濕。

溫度・越冬

終年以同樣葉片過活，不具耐凍機制。冬季需移入不結冰處，或在屋外設防霜措施。

用土・換盆

用泥炭3・矽砂1・珍珠岩1的配比或純泥炭栽培。被苔蘚或藍藻覆蓋時應移植至新用土。

繁殖方法

為壽命短的多年生植物，欲長期享受需採集種子。因自花授粉困難，應用筆涂抹花粉進行授粉。種子在15℃以上環境下約2～4週內發芽。

關於黃挖耳草（Pinguicula lutea）

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.

開始照料黃挖耳草（Pinguicula lutea）前需要了解的7件事

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.

黃挖耳草（Pinguicula lutea）的常見問題

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.

黃挖耳草（Pinguicula lutea）栽培的實用工具

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