purpleinopp said:I can understand not wanting to waste them but I encourage you to not put them in pots. I've seen at least a dozen posts in just the past few months on this site of people wondering why their plant took a sudden turn for the worse after those spikes were put in the pot.
Although I have never used the spikes, anecdotally there seems to be a high rate of potted plant failure related to them, at least as reported on this site. I think the confined area of a pot prevents the fertilizer from properly dispersing and so it remains too concentrated where the spikes are placed.
Yet I know this product has been on the market for decades so it must be working for someone!. Perhaps do you have outdoor shrubs that might benefit from them?
DaisyI said:Take the plant sticks out and crumble them up then use them. If the recommended dose is 4 sticks for your pot size, crumble two and scatter the bits over the soil.