The Sandpaper verbena is well adapted to warm microclimate locations in the Inland Empire where it thrives in sun, normal winter rainfall and low amounts of summer water. Monthly deep watering from spring through fall will enhance its spring flowering cycle and help maintain good foliage character. It should be noted there are several winter months marked by an asterisk (*) when rains can provide sufficient moisture and irrigation is not needed. The high and low range of moisture indicates it can grow with varying amounts of water depending upon exposure conditions and size.
|
Jan* |
Feb* |
Mar* |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov* |
Dec* |
Runs per Month |
0x to 2x |
0x to 2x |
0x to 2x |
1x to 2x |
1x to 2x |
1x to 2x |
1x to 2x |
1x to 2x |
1x to 2x |
1x to 2x |
0x to 2x |
0x to 2x |
Inches per Run |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
1″ |
|
Inches per Month |
0″ to 2″ |
0″ to 2″ |
0″ to 2″ |
1″ to 2″ |
1″ to 2″ |
1″ to 2″ |
1″ to 2″ |
1″ to 2″ |
1″ to 2″ |
1″ to 2″ |
0″ to 2″ |
0″ to 2″ |
Range of supplemental summer water: 7"-14"
Range of supplemental winter water: 0"-10"
|
0″-2″ |
0″-2″ |
0″-2″ |
1″-2″ |
1″-2″ |
1″-2″ |
1″-2″ |
1″-2″ |
1″-2″ |
1″-2″ |
0″-2″ |
0″-2″ |
|
Jan* |
Feb* |
Mar* |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov* |
Dec* |
For more information on how to use this Irrigation Schedule and Graph, follow this link.
For information how to calculate your irrigation system’s schedule and precipitation rate, please follow this link.
Sandpaper Verbena usually dies back all the way to the ground, or at least significantly, during the winter. When this happens, cut it all the way to the ground with pruners, hedge shears, or a high powered string trimmer, depending on the size of the planting. It can also be lightly pruned at any time of the year to clean up and maintain its size. Sandpaper verbena spreads by roots, and can do so aggressively in the garden. Plan to either dig it out once it grows where you do not want it. If the parts you dig out have roots, they can either be transplanted or potted up into a container with potting soil and given away. You can also consider installing a root barrier to help keep the plant “in bounds,” (S).
References