Manihi Treasure Island is a sweet potato variety from the Convolvulaceae family, belonging to the same morning glory lineage that makes sweet potatoes distinctly American despite their visual similarity to African yams. This cultivar thrives in full sun and moderate moisture, preferring soil with a pH between 5.8 and 6.2. Plant slips deeply into raised beds, and the variety will reward you with nutrient-dense tubers rich in vitamin A come fall harvest.
16
Full Sun
Moderate
9-11
?in H x ?in W
—
Moderate
Hover over chart points for details
Sweet potatoes are fundamentally different from yams despite their look-alike status; they come from the American morning glory family rather than an African shrub. Manihi Treasure Island grows best when slips are planted deeply into raised beds, kept evenly moist until new growth appears, and harvested after the first frost when soil temperatures have cooled. The variety demands full sun exposure and thrives in moderate watering conditions with slightly acidic soil.
Sweet potatoes serve as an excellent culinary vegetable, prized for their nutritional density and vitamin A content. The tubers are typically roasted, baked, mashed, or incorporated into both savory and sweet dishes across various cuisines.
No timeline data available yet for this variety.
Plant slips deeply into raised beds, positioning them up to the top leaves to encourage strong rooting. Live plants should be set even with the soil surface. Keep the soil evenly moist until new growth appears, signaling successful establishment. Space transplants 16 inches apart with 12 inches between rows.
Harvest after the first frost has arrived and the weather has cooled in fall, before a hard freeze damages the tubers. Dig carefully to avoid bruising the potatoes, as damaged tubers do not store well.
Enter your ZIP code to see a personalized growing calendar for this plant.