25 Gunnera Manicata Seeds – Giant Hardy Exotic Flower Plant

Bring prehistoric grandeur to your garden with Gunnera manicata Seeds, also known as Giant Rhubarb or Dinosaur Food — one of the most spectacular architectural plants on Earth. Believed to date back over 150 million years, this ancient botanical marvel produces massive, deeply lobed green leaves up to 6 feet wide atop prickly stems that can reach 10 feet tall.

A true statement plant, Gunnera manicata instantly transforms any garden, pond edge, or boggy landscape into a lush, tropical paradise. Its bold leaves, red-brown flower spikes, and vivid berry-like fruits make it one of the most eye-catching and dramatic perennials in existence.

Perfect for large gardens, bog edges, and pond landscapes, this rare and hardy plant thrives in moisture-rich soil and will command attention with its prehistoric beauty year after year.

🌱 Why Grow Gunnera manicata (Giant Rhubarb) Seeds?

• 🌿 Spectacular Foliage: Gigantic, ribbed green leaves up to 6 feet wide — a garden showstopper!
  
• 🦕 Prehistoric Beauty: Often called “Dinosaur Food” for its ancient, dramatic appearance.
  
• 💧 Loves Moisture: Perfect for ponds, bog gardens, and wet soils.
  
• 🌺 Unique Flowers: Produces bottlebrush-like red-green blooms and berry clusters.
  
• 🌤️ Hardy & Adaptable: Grows in Zones 6–11 with winter protection.
  
• 🌎 Rare Collectible: A must-have for exotic and tropical garden enthusiasts.

🌿 Growing Tips

1. ☀️ Light: Full sun to partial shade.
   
2. 🌱 Soil: Moist, rich, well-draining soil near water features. Never allow to dry out.
   
3. 💧 Water: Keep soil constantly moist — Gunnera loves wet conditions.
   
4. 🌡️ Temperature: Ideal in Zones 9–11; protect crowns in colder climates (Zones 6–8).

🌾 Sowing:

1. Lightly press seeds on the soil surface — do not bury (needs light to germinate).
   
2. Mist gently; do not overwater.
   
3. Keep warm (68–77°F) using a heated propagator or warm windowsill.
   
4. Germination may take 15–90 days — patience pays off!

🧤 Pro Tip: Always wear gloves — oils from hands can reduce germination success.

💡 Winter Care: Protect growth buds from frost by covering with dead leaves or mulch.

❓ Frequently Asked Questions (FAQ)

How big does Gunnera manicata grow?
Leaves can reach up to 6 feet across and stems grow as tall as 10 feet.

Is Gunnera easy to grow from seed?
Yes, but patience is key! Germination can take 15–90 days under warm, moist conditions.

Can I grow Gunnera in a cold climate?
Yes — in Zones 6–8, simply protect the crown with mulch or dead leaves during winter.

Where should I plant Gunnera?
Near ponds, streams, or boggy soil where moisture stays consistent.

Is this plant really that old?
Yes — Gunnera manicata is a prehistoric species, believed to date back over 150 million years.

Where to Buy Gunnera manicata Seeds for Sale?

At Seeds World, we offer fresh, high-quality Gunnera manicata (Giant Rhubarb) seeds — ideal for creating a bold, tropical focal point in your garden. Every batch is tested for purity and packed with detailed growing instructions. Fast U.S. shipping and start growing your own prehistoric garden giant!