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Black Surprise

$7.50 $15.50
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Product Information
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📦 Quantity per Package: 10 Bulbs

☀️ Light Required: Full Sun / Partial Shade
🌷 Height: 40-48"
🌸 Blooming Period: Jul - Oct
🌱 Bulb Size: 12/14
Planting Distance: 4"
Planting Depth: 2"
📍 Hardiness Zone: Zone 7-10
🦌 Deer Resistant: Yes
Black Surprise

About Black Surprise

Gladiolus Black Surprise is a unique and striking flower that adds a bold touch to any garden. With its dark red-black color and tall, spiky blooms, it's sure to turn heads and make a statement in your garden.

  • Dark and mysterious, this flower is perfect for adding a touch of drama to your garden
  • Tall, spiky blooms reach up to 5 feet in height
  • Perfect for adding height and interest to the back of a flower bed
  • Grows up to a height of 3-4 ft. tall
  • Perfect as a cut flower

How to care for Black Surprise

  • To plant Gladiolus Black Surprise, simply dig a hole in well-drained soil and plant the corm (bulb) about 4 inches deep and 4-6 inches apart. 
  • Water well and keep the soil consistently moist.
  • Fertilize with a balanced fertilizer every 2-4 weeks during the growing season. 
  • Deadhead spent blooms to encourage reblooming.

Frequently Asked Questions

The best time to plant Black Surprise gladiolus bulbs is in the spring after the danger of frost has passed and the soil has warmed up to at least 60°F. Planting at this time will allow the bulbs to establish roots and grow before the hot summer temperatures arrive.

Make sure to choose a well-draining location that receives at least six hours of sunlight each day. Plant the bulbs 4 inches deep and 4-6 inches apart, with the pointed end facing up. Water thoroughly after planting and keep the soil moist but not waterlogged. With proper care, Black Surprise gladiolus bulbs will produce stunning dark purple flowers in the late summer or early fall.

To prepare Black Surprise gladiolus bulbs for planting, follow these steps:

• Choose a planting location that receives full sun and has well-draining soil.
• Dig a hole that is two to three times deeper than the height of the bulb.
• Add a layer of compost or well-aged manure to the bottom of the hole for added nutrients.
• Place the bulb in the hole with the pointed end facing up.
• Cover the bulb with soil and gently tamp down the soil to remove any air pockets.
• Water the soil thoroughly and continue to water regularly throughout the growing season.
• Apply a balanced fertilizer once per month during the growing season to promote healthy growth.
• Stake the plants as they grow to prevent them from falling over.

By following these steps, you can successfully prepare and plant Black Surprise gladiolus bulbs for a beautiful and vibrant display in your garden.

Black Surprise gladiolus bulbs are best planted in a location that receives full sun or partial shade, and in well-draining soil. The soil should be fertile and moist but not waterlogged, as these bulbs do not tolerate soggy conditions.

They prefer a pH range of 6.0-7.0. Plant the bulbs 4 inches deep and 4-6 inches apart, with the pointed end facing upwards. These bulbs can be planted in garden beds, borders, or containers, and can be used to create a stunning focal point or accent. Be sure to protect them from strong winds and stake them if necessary, as they can grow quite tall.

Yes, Black Surprise gladiolus bulbs can multiply over time. Gladiolus bulbs reproduce by producing small cormels, which are miniature bulbs that form around the base of the parent corm. These cormels can be separated from the parent bulb and planted separately to produce new gladiolus plants.

However, it's worth noting that not all cormels will develop into full-sized bulbs and it can take a few years for them to reach maturity. To encourage multiplication, it's important to provide the bulbs with adequate nutrients and space to grow, as well as to properly store the bulbs during the dormant season.

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