One of our long time concerns is the accuracy of plant tags…especially now that 60% of the plants purchased in the country are now sold through the box stores. While we’re thrilled that more plants are available to the masses, most tags are produced from a single national vendor, and the information may not be correct for your climate. Sizes, in particular vary widely. What may make a 1′ tall x 2′ wide shrub in one climate may reach 6′ tall x 9′ wide in another…yes, we have real life examples. The dirty little secret is that most plant measurements are taken from sheared plants growing in nursery containers, and not mature landscape specimens.
Often information on the web is also quite inaccurate since most sites simply copy from another site and never take time to actually observe the plants in person. We always recommend when possible to shop with vendors who actually grow the plants themselves…in the ground. If that’s not possible, visit local botanic gardens and observe the plants yourselves. You’ll save so much future garden maintenance time if you get the plant in the right location first time.
With the quest for cheaper and cheaper plants, time devoted to accuracy of information is often sacrificed. The tag in the photo fails on a couple of details. In most areas, mondo grass is best in light shade, although it can be fine with a few hours of morning sun. Our favorite faux pas is listing two genera for the same plant. Ophiopogon is correct, but convallaria is a lily of the valley…a completely different plant. We won’t mention the name of the box store where we saw this, but always be wary.