Slips in your sandbox will grow amazingly fast and harvesting can be done a couple of times per week.

The slips which are 15 to 20cm long should either be twisted off if they are growing on top of the Kumara, or gently pulled from the Kumara with increasing force if growing from  beneath the sand.

Often it is neccessary to place a finger onto the Kumara as not to dislodge it from its bed. Some slips from beneath the bed will have a good amount of roots.

You will get a mixture of slips with and without roots, and it is important to grown them on before planting.