Garden beds, seeds and withering

<h2>Garden cycle</h2><ol><li>Unpurchased beds are covered by grass.</li><li>Buy and dig the plot.</li><li>Buy and plant seeds.</li><li>Water required stages.</li><li>Harvest before withering.</li></ol><p>Bed dimensions stay constant; only soil and crop artwork changes. Harvest goes to the shared warehouse. Check digging, seed, watering, timer and active upgrades if growth stops.</p>