Family Owned Since 1979
Cultivating Gardeners



Product Description:

120 days. This much sought after Japanese sweet potato has amethyst skin and pearly flesh that’s creamy, sweet and nutty flavored. So different from ordinary sweet potatoes, Murasaki has drier, more subtly flavored flesh that begs to be roasted and topped simply with butter or miso for a sumptuous dish. Plants are disease resistant. This is a long season crop that benefits from plastic mulch to pre-warm the soil.

Slips are shipped Priority Mail directly from the growing fields, between mid-April and early June. Available only within the contiguous US. Sorry, not available to CA.
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Customer Reviews

Based on 5 reviews
Too soon to tell

Revived post-arrival, as promised and vines thriving, but could have used more info than provided for forth/care/harvest info. Had to fence raided beds because grazing thieves—woodchucks were stripping them.

Cheryl Y.
They Survived

I waited to write a review until after we planted them and waited. They arrived 3 days later than were tracked to. They were completely dried out so we followed the instructions and put them in water for a few days and planted those little sticks. Apparently they are as resilient as the info said they were!


Yes, plants arrived somewhat wilted. I put them in a glass of water on the counter just enough to cover the roots. Kept them indoors for a week and with indirect light- they firmed up and began to look healthy. Now they are ready to plant!

Y G.
Not what I was expecting

The plants came in very very wilted, and there were only about 10 roots (at least that seems to be alive). I stuck all of them into the ground the following day after soaking them in water overnight to see if they will rejuvenate. Of the 10 that went in, looks like about 6 survived. This is indeed very disappointing. Was expecting healthy root cuttings, and definitely not what I received.

So sorry to hear that! At Territorial our products are backed by our full guarantee! We want you, our customers, to be 100% satisfied with the seed, plants and supplies that you purchase from us. If anything you buy from Territorial proves to be unsatisfactory, we will either replace the item (if available) or refund the purchase price (up to 1 year from purchase). Contact our customer service (Monday-Friday 8AM-5PM Pacific Time) at either 800-626-0866 or

Soil Temp for Transp 65°F
Plant Spacing 16-18"
Row Spacing 12-24"
Fertilizer Needs Medium

Ipomoea batatas Sweet potatoes are an excellent source of vitamin A. Although sweet potatoes and yams look alike, the yam is from a subtropical shrub that is native to Africa, while the sweet potato is from the American morning glory family.

Days to maturity are calculated from date of planting.

• Sweet potatoes should be planted in the garden when the weather has stabilized in late spring and nighttime temperatures are above 60°F
• The use of low tunnels or cold frames is highly recommended in cooler climates and northern states with shorter seasons
• Rototill or fork in a 2 inch thick layer of compost and bone meal
• Create 6-8 inch high raised beds
• Soil should be adequately draining; water thoroughly every 7-10 days
• Sweet potatoes require up to 1 inch of water per week throughout the season

• Plant slips deeply into raised beds, up to top leaves
• Live plants should be planted even with the soil
• Keep evenly moist until you see new growth
• If the soil temperature is less than 65°F, plant slips in 3-4 inch pots and keep them in a warm location until you can plant outside

Insects & Diseases
• Common insects: Usually pest free
• Common diseases: Scurf
• Disease prevention: Remove all plant debris after harvest and practice good crop rotation

Harvest & Storage
• Harvest prior to first frost after the weather cools in the fall
• To cure, brush off the soil and place the sweet potatoes in a warm, dry area (80-85°F and 80-90% relative humidity) for 7-14 days
• After curing, handle carefully and store them at 50-60°F

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