Sweet potato, centennial

Sweet Potato, Centennial (Ipomoea batatas ‘Centennial’)

Centennial is a classic heirloom sweet potato known for its deep orange flesh, dependable yields, and rich, sugary flavor. Developed for high productivity and excellent storage, it has remained a favorite among gardeners and homesteaders for decades. Its vigorous vines and nutrient-dense roots make it a valuable staple crop in productive garden systems.

Key Characteristics

Deep orange flesh with rich sweetness
Centennial produces moist, smooth-textured roots with a deep orange interior rich in flavor and beta carotene. The sweetness intensifies after curing, making it especially well-suited for baking, roasting, casseroles, and pies.

Heavy yields for productive food gardens
This variety is known for producing abundant medium to large roots under warm growing conditions. Its vigorous growth and reliable performance make it an excellent staple crop for gardeners focused on food production and storage.

Spreading vines for soil coverage and weed suppression
The fast-growing vines create a dense ground cover that helps shade soil, retain moisture, and suppress weeds. This living mulch effect makes sweet potatoes useful in regenerative and permaculture systems where soil protection is prioritized.

Excellent storage qualities for winter use
Once cured properly, Centennial stores exceptionally well for several months. This long shelf life makes it ideal for homestead gardens and seasonal food security systems where durable staple crops are important.

• Native range: Tropical Americas (cultivated variety)
• Plant life cycle: Tender perennial grown as an annual
• Sun requirements: Full sun
• Soil requirements: Medium, loose, well-drained
• Mature height: 8–12 inches (vining spread 4–8 feet)
• Bloom time: July – September
• Bloom color: Pale lavender
• USDA Hardiness zones: 8–11 perennial; grown as annual elsewhere

For best results, plant slips after soils have fully warmed and provide loose, fertile ground for root expansion. Harvest before frost and cure roots in a warm, humid environment to maximize sweetness and storage life.