Paphiopedilum hirsutissimum Orchid Plant – Bloom Size Lady Slipper Orchid
$17.00
Paphiopedilum hirsutissimum 1 Plant bloom size
1. Botanical Description
The name hirsutissimum comes from the Latin word for "very hairy," which is the most defining characteristic of this species.
The Flower: It produces a single, large flower (10–15 cm wide) on a heavily forested (hairy) stalk. The dorsal sepal (top petal) is typically greenish-yellow with dense dark brown spotting. The petals (sides) are long, horizontal, and distinctively twisted toward the tips, fading into a beautiful bright pink or violet-purple color.
The Foliage: Unlike many mottled-leaf Paphiopedilums, this species has solid green, strap-shaped leaves. They are leathery and can grow up to 30 cm long.
Origin: Native to Southeast Asia (India, Myanmar, Thailand, Laos, Vietnam, and Southern China). In nature, it often grows as a lithophyte (on mossy limestone rocks) or occasionally as an epiphyte in evergreen forests.
2. Cultivation Guide
This species is considered a rewarding orchid for hobbyists because it is relatively hardy, though it requires a specific "chill" to bloom.
Light
Requirement: Low to Medium light (1,000 to 1,500 foot-candles).
Tip: Think of "dappled sunlight." It should never be in direct midday sun. If the leaves turn very dark green, it needs more light; if they turn yellowish-red, it’s getting too much.
Temperature (The Secret to Blooming)
Intermediate to Cool: This is a cool-growing species compared to tropical Paphs.
Daytime: 21°C – 28°C (70°F – 82°F).
Nighttime/Winter: To trigger flowering, it needs a cool rest period in the winter where night temperatures drop to 10°C – 13°C (50°F – 55°F) for several weeks. Without this temperature drop, the plant may grow leaves but refuse to bloom.
Watering & Humidity
Watering: Keep the medium moist but not soggy. Paphiopedilums do not have pseudobulbs to store water, so they should never dry out completely.
Humidity: Prefers 60% to 80% humidity. Use a humidity tray or a humidifier if your indoor air is dry.
Caution: Avoid getting water in the "crown" (the center where leaves meet) at night, as this can cause crown rot.
Potting Media
Because it grows on limestone in the wild, it appreciates a well-draining mix that stays moist.
Recommended Mix: Fine-grade orchid bark, perlite, charcoal, and chopped sphagnum moss.
The "Pro" Tip: Adding a small amount of crushed oyster shells or limestone chips to the mix helps mimic its natural habitat and provides the calcium it loves.
Fertilizer
Use a balanced orchid fertilizer (20-20-20) at quarter strength every two weeks. "Weakly, Weekly" is the best rule for Lady Slippers. Flush the pot with plain water once a month to prevent salt buildup.
3. Blooming Season
Expect flowers in late winter to spring (typically January through May). The blooms are very long-lasting, often remaining perfect for 6 to 8 weeks.
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