🥦 Yacon

Smallanthus sonchifolius
vegetables perennial herbaceous (grown for tuberous roots) Asteraceae
Yacon plant photo
☀️ Sun
full sun to partial shade
💧 Water
moderate to high
🗺️ Zones
8, 11 (zones 7 with mulch)
🧪 Soil pH
6.0-7.0
🪴 Soil Type
well-draining, fertile, loose
🚿 Drainage
Well-drained
📏 Spacing
24-36 in. apart, 36-48 in. between rows (large plants, 4-6 ft tall)
📐 Height
60-84 in
⏱️ Maturity
180-200 days (from planting); harvest after first frost kills foliage for sweetest roots

🍴 Edible Parts

🍽️ Eaten raw like fruit, salads, juice, syrup production (low-glycemic sweetener)
Key:🤝 Grows well together❌ Keep apart☀️ Sun needs💧 Water🗺️ Hardiness zone

🤝 Companions (14)

Amaranth and yacon are both tall, productive plants with complementary nutrient needs , yacon's large leaves shade out weeds between amaranth plants.
Aromatic herb that improves health of neighboring plants
Nitrogen fixer for heavy-feeding yacon
Tall corn provides wind protection for yacon
Universal garden companion; deters pests and attracts beneficials
Nasturtium acts as a trap crop for aphids, protecting yacon; its low-spreading habit covers soil beneath yacon's tall stalks, suppressing weeds and retaining moisture. IMPORTANT management caveat: without active management, nasturtiums can become a SOURCE of aphids that migrate to nearby crops. Either remove aphid-infested nasturtium plants promptly, or treat the trap crop itself to eliminate the aphid colony before it spreads. Strategic placement within 4-5 feet of protected crops is key.
Both large-rooted tropical perennials; different harvest
Sunflowers and yacon both grow tall with complementary root systems , sunflowers bring up deep minerals while yacon produces sweet tubers in the upper soil layers.

⚠️ Keep Apart (6)

Allelopathic - may inhibit growth
Aggressive mint competes for resources
Susceptible to juglone toxicity from walnut trees
⚠️ plants needing full sun beneath its canopy
Growth inhibition or competition

📝 Growing Notes

Tall (6-8 ft) daisy family plant with large leaves providing shade for understory crops. Produces sweet, crisp tubers. Related to Jerusalem artichoke. Frost-sensitive but tubers store well.

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