The Glaskins Perpetual Rhubarb (Rheum rhabarbarum) is a renowned English heirloom variety prized for its tender, richly colored stalks and extended harvest season. Also known as Pieplant, this hardy perennial vegetable produces sweet-tart stems perfect for baking, preserves, and sauces.
These non-GMO rhubarb seeds produce vigorous plants that thrive in cooler climates and can yield for years once established. The Glaskins Perpetual variety stands out for its early maturity and long, productive season.
| Specification | Details |
|---|---|
| Scientific Name | Rheum rhabarbarum |
| Common Names | Glaskins Perpetual Rhubarb, Pieplant |
| Plant Type | Perennial Vegetable |
| Stem Color | Red to deep pink |
| Season | Cool season |
| USDA Hardiness Zones | 3–8 |
| Growth Habit | Clumping perennial |
| Mature Height | 2–3 ft |
| Sunlight | Full sun to partial shade |
| Soil Type | Rich, well-drained loam; pH 6.0–7.0 |
| Water Needs | Moderate; consistent moisture during growth |
| Heirloom | Yes |
| GMO Status | Non-GMO |
| Organic Option | Available (check variant) |
| Bloom Time | Late spring (flowers should be removed to extend stalk harvest) |
| Harvest Time | Spring through late summer |
Planting Guide
- Soil Preparation: Enrich with compost for strong root development.
- Sowing Depth: ½ inch deep in moist, well-drained soil.
- Germination: 7–14 days at 60–75°F.
- Spacing: 24–36 inches between plants; allow room for mature clumps.
- Watering: Keep soil evenly moist but avoid waterlogging.
- Maintenance: Remove flower stalks to encourage leaf-stem production.
- Harvest: Begin light harvest in the second year; stalks ready when 12–18 inches long.
Growing Tips
- Avoid harvesting in the first year to let roots establish.
- Ideal for cool and temperate gardens with rich soil.
- Apply mulch in winter for root protection.
- Rhubarb leaves are not edible—harvest only the stalks.
- Divide crowns every 5–6 years for renewed vigor.
