My gardening in pots is taking off. Cold weather crops are gone, except for one or two kale and swiss chard plants. Have been having tomatoes for a couple of weeks, and cucumbers are now in abundance. I noticed the leaves of all tomato plants are turning a rusty red color and so are the leaves of basil plants. I’ve never seen this before and don’t know what it is or how to treat it. Have been thinking it is something in the soil or maybe the lack of it. Would appreciate any information offered.
Are your tomato and basil plants all in pots or containers? If so you may need to fertilize/water them more often.
Not sure if this will help or not, but alot of times our stuff in containers “bronzes up”, esp if we are watering a lot b/c of hot weather or if we have a hurricane w/ a lot of rain. It’s a lack of potash usually.
Fertilize. At the garden center where I work we use miracle gro, acid miracle gro, and epsom salt—1 tablespoon of each to 1 gallon of water. It may take several days of this but you should notice them greening back up.
We have really hard water here, so you may have to adjust accordingly. :)