But plant toys do exist but are harder to spot than the animal ones. I only have a few myself. The other day I was cleaning my old room and came across the very few left in my collection. Before I had a little more but regretfully gave them away as gifts.
The first set are miniature handmade flowers in pots - made in Singapore. I bought them from a small shop in Ortigas which sadly is now closed. I used to have many of these, mostly orchids. I remembered having Phalaenopsis and Cattleya similes. Now what remains are 3 pots, a red orchid which I could not identify, a Paphiopedilum (slipper orchid) and a Nymphaea (water lily).
The others are a set of plastic carnivorous plants, which I chanced upon a few years ago in a Japanese game arcade. These are capsule toys in bubble gum dispensers. I remembered shelling out about 2000 yen just to get 10 capsule toys. The complete set included 5 carnivore species but unfortunately I was not lucky to get the coveted Venus flytrap. Instead I got the four other pitcher plant species and duplicates (the doubles I also gave away as pasalubong to some friends). The most prized is the Nepenthes alata which is a Philippine native.