Add a plant to your plan then double-tap on it (or alternatively tap on it once, then tap Edit on the editing toolbar below your plan).

Tap on the Varieties drop-down menu and select your variety.

Scroll down and tap Done.

If the variety you need is not currently listed, you can open the Edit Plant box as above then add your own variety in the following way:

Tap Add Variety.

Name your variety, then tap Add.

If you want to change the default spacings and growing dates, tap Customize Varieties.

Tap on Edit.

Check the Use Custom Spacings box and edit the spacings if necessary.

Check the Use Custom Times box and tap on the calendars for the months or half-months that are appropriate for you growing this plant if necessary.

Tap Done when finished.

Tap on Save All Changes.