Syn. J. ailanthifolia var. cordiformis
Native Region: Japan
Zone Range: 5-9
Preferred Climate: Full to semi sun; well draining deep soil
Harvest Date: Wednesday 05 January, 2011
Seed count: 5-7
Sweetheart shaped kernels come away clean from easy to crack shells. Taste is better than an English walnut (Juglans regia), but not as refined as Butternut (Juglans cinerea) and has a very clean taste with no bitterness sometimes encounted with English walnuts. Established trees require very little care. Nut shell interior look like heart locket.
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Stored in moist peat at 4C for prompt spring germination. Sow nuts 3 cm deep in a sowing layer consisting of equal parts peat, compost, and coarse sand. Use deep pots as this species puts down a very large tap root. Apply a thin top layer of fine mulch. Needs 90-120 days of cold stratification to germinate at 20 C in the spring/early summer. Alternate germination technique: baggie sow the nuts in a large clear plastic bag and mix nuts with just moist medium of equal parts coarse sand and peat. Check bag and pluck out sprouters as the spring progresses. Check bag often. We get better germination via baggie than direct or pot sowings.