iGarden USA 5.0
iGarden USA recommends when to plant every crop based on the frost dates for your yard, plans your garden to scale, and tracks every planting through harvest. Rebuilt from the ground up for iPhone, iPad and Mac.
$4.99 on the App Store for iPhone, iPad and Mac.
On Android? Get the current version free on Google Play. Version 5.0 for Android is coming soon.

Features
Planting dates built on real climate data, a planner that does the spacing for you, and a journal that follows every bed through the season.
Recommended planting dates for 91 vegetables, herbs and flowers, based on your local frost dates from NOAA climate normals.
Lay out rows or a raised bed. iGarden spaces every plant and shows the plan as a map with rulers.
Plant one crop or the whole garden straight from the plan, then watch each harvest count down.
Forecasts and alerts from the National Weather Service, with the plants you need to cover.
Notes, photos and pest sightings for every bed and every season.
Gardens, plans and notes stay in sync on iPhone, iPad and Mac, in your private iCloud.
My Garden groups everything you planted by the garden it's in, shows what's ready, and puts every planting and harvest on one calendar.
Tell iGarden the size of your garden and what you want to grow. It lays out the rows or squares, spaces every plant, and keeps tall crops on the north side.
Snap a photo, log a pest, or jot down what worked. Notes link to the plants they're about and sync through your own iCloud account, so NanoSoft never sees them.
Reviews
iGarden is just as important as a shovel if you're planning on creating your very own vegetable garden. This app keeps track of when to plant, spacing, companions or foes and more. The most important is the fact this app keeps track of when to harvest!
I love that you can add the option of whether you are planting inside or outside. I just started a hydroponic garden and it is a very useful tool.
Exactly what I was looking for. Great app for tracking planting dates and garden progress throughout the season.
Every year at this time I begin setting my goals for my garden. I look forward to using this app and so far I love it.