I had a few disagreements a few months ago over what writing implement to use when writing tags for outdoor plants. My opinion was formed by years of experience and observations while growing plants in Pennsylvania, however the people disagreeing with me had far more experience in West Coast settings. Since some environmental factors are very different here, most notably water alkalinity and sun exposure, I decided to voice my dissension but not make a big issue out of it . . . yet.
In the meantime I’ve been running experiments.
The next time this disagreement comes up I’ll have a data haymaker to throw.
The Cliff Notes:
- Sharpie® permanent markers are not good for outdoor labels (top label)
- Nursery makers with UV degradation resistance will outperform a Sharpie® permanent marker (middle label)
- Graphite pencil should outperform ink markers (bottom label)