Keeping Track of the Radishes

I pretty often forget what I've planted where.

I try to put in signs or sticks, but the writing wears off, or I just don't remember to put 'em in.

Here's an attempt to rectify that: I planted radishes; here's where I planted them.

Note that we have a length of gutter on the side of the greenhouse.  Now we have some radishes in that gutter. We'll plant other things there later.

Let's see if I remember where I put 'em.