|I have three dahlia tubers that are expected to grow 4' by 4'. What size of pot should I use for one, two, or all three?|
|Some of the smaller, or border, dahlias will grow well in pots, but you may have a real challenge on your hands in trying to grow full sized dahlias in pots. These plants can produce a jungle of foliage, which generally requires staking for support. The tubers should be buried about 12" below the soil surface. To accommodate these plants, plan on using a five-gallon bucket per plant, filling it with garden soil amended with organic matter, placing two 6' tall stakes in each bucket, and then planting the tuber.|
Make sure there are plenty of drainage holes in the bottoms of your containers, and check the plants every 3-4 days to make sure the soil hasn't dried out.
Hope you're successful with your containerized dahlia garden!