Arrives healthy & gift-ready
Healthy plant or replaced free
Plant care guide included with every gift Plus live plant doctor access
Give a 3-month, 6-month, 12-month subscription
View SubscriptionSold Out
The pads are distinctly dark purple to almost black, especially pronounced in cool weather, and grow in an upright, spreading form that can reach 3 to 4 feet tall over time. Each pad is flat and oval-shaped with a waxy surface and few visible spines. The color intensifies as the plant matures, giving mature specimens a dramatic, almost midnight appearance.
'Dark Knight' produces small yellow or orange flowers in late spring to early summer, typically appearing along the pad edges. The blooms are short-lived but prolific when the plant reaches maturity, and the plant may develop edible fruits afterward under full sun and warm temperatures. It is slow-growing, taking several years to reach full size.
Rotate 'Dark Knight' indoors regularly to promote even growth on all sides. Move it outside for the summer and it handles balcony wind without trouble. The plant has deep roots and needs a heavy pot to prevent tipping as it spreads wider than it grows tall. Cats and dogs shouldn't be left to nibble or eat it, so keep it on a high shelf away from pets and best placed away from small children. A mature specimen makes a statement in a drought-tolerant garden or large container, while smaller plants suit desks and indoor spots with direct or bright indirect light.
Opuntia 'Dark Knight' grows well in direct sun but tolerates low-light indoor spots; scorches in south-facing windows if kept indoors year-round.
Water it every 10-14 days during the growing season, allowing soil to dry completely between waterings; it wilts slightly when the soil is very dry.
'Dark Knight' does best in well-draining cactus or succulent mix, amended with extra perlite or coarse sand to prevent root rot.
It prefers temperatures between 50°F and 85°F and handles dry heated indoor air; cold dormancy below 50°F is natural and beneficial.
It is hardy in USDA zones 5-10, surviving temperatures as low as -20°F outdoors. It grows year-round in southern California, Arizona, New Mexico, Utah, Colorado, Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Florida, and Hawaii.
Q: How cold can Opuntia 'Dark Knight' tolerate?
A: It survives -20°F and grows well in USDA zones 5-10, making it one of the hardiest prickly pears for alpine and cold-climate gardens.
Q: Can I grow this plant indoors?
A: Opuntia 'Dark Knight' grows indoors in bright indirect light or near a sunny window, though it prefers outdoor conditions and will develop deeper color in full sun.
Q: How quickly does 'Dark Knight' grow?
A: It is slow-growing, typically taking 3-5 years to reach mature size; pruning in late spring keeps it compact.
Q: What happens if I overwater?
A: 'Dark Knight' develops soft, translucent pads that may collapse from root rot; check the soil an inch deep and water only when it feels completely dry.
Q: Can Dark Knight Prickly Pear be eaten?
A: Yes, the fruits are edible and mildly sweet when ripe, though the plant is grown primarily for its dramatic purple pads rather than fruit production.
Q: How do I propagate Dark Knight Prickly Pear?
A: Detach a pad in spring or summer, let it dry for 3-5 days, and plant it in dry cactus soil; roots form within 2-4 weeks without watering.
Hand-Packed with Care: Using recyclable wraps and crinkle paper, we ensure every succulent arrives healthy and in perfect condition.
Processing: Shipped within 3-5 business days (Mon-Fri) year-round.
Urgent Orders: Message us for shipping upgrades (additional cost).
Destinations: We ship succulents to all 50 US states and territories, with the exception of Guam.
Cold Weather: If under 40°F, please add a Heat Pack to your order for safety.
🌵 For Succulents
When your package arrives, you may notice a bit of loose soil in the box. This is completely normal during shipping.
Please remove your plants from their packaging right away and follow the care instructions included with your order. Succulents prefer to dry out between waterings, so only water when the soil is completely dry.
Succulents are resilient plants and typically recover quickly once they settle into their new environment. Give them a few days to adjust before placing them in direct sunlight, and avoid fertilizing right away.
*** We pack carefully to protect each plant during transit, so larger orders may arrive in multiple packages
🌿 14-Day Satisfaction Guarantee (Replacement or Refund)
From arrival to long-term care, we’ve got you covered. We carefully pack every plant so it arrives happy and healthy. If something doesn’t look right when it gets to you, don’t worry, we’ll make it right.
How it works:
- Reach out within 14 days of delivery
- Send us your order number and a couple of photos of your plant(s)
- We’ll take care of you with a replacement or a refund
👍 Green Thumb Guarantee (6-Month Extended Coverage)
Still getting the hang of plant care? You’re not on your own. For up to 6 months from your order date, if your plants show serious decline or fail to survive, we’re here to help.
You can claim a gift card to help you continue your plant journey.
How it works:
- This coverage continues after the 14-day guarantee
- Gift card value starts at $15, with the opportunity for more based on your order
- Total gift card value is capped at $50 per order
- One claim per order or subscription
- Gift cards are valid for 6 months from the date of issue
- Just send your order number and a few photos of your plant(s) to support@succulentsbox.com, and we’ll take it from there.
1,000+ Plants, the Largest Selection Online. 600+ succulents, 400+ houseplants, and 70+ air plants, all carefully selected and professionally grown.
Plants That Are Ready to Thrive. Every plant is inspected for health and disease before it leaves our nursery, then shipped on schedule so it arrives fresh. The best plant quality you'll find online.
Gifts and Subscriptions for Any Occasion. 30+ themed gift boxes and 1, 3, 6, or 12-month subscriptions.
14-Day Satisfaction Guarantee. Something not right? Send us your order number and photos and we'll fix it.
6-Month Green Thumb Coverage. The longest guarantee in the industry. If your plant seriously declines, we're still here for you.
Real People, Real Answers. No chatbots. Our team responds within 24 hours. Over 15,000 five-star reviews, and our customers say we have the best customer service in the plant industry.
