One of Eight Potted Knock Outs Yellowing in Houston Heat

Eight potted Knock Outs in Houston (100°F+, no rain) get identical care—watered every other night at soil level. One shows yellowing/browning on one entire side.

Heat Stress Is Uneven

Even with uniform care, micro-differences (pot position, root distribution, sun exposure) cause individual plants to stress differently. Transplanting into larger pots adds stress.

What to Do

• Water daily in extreme heat.
• Accept reduced blooming—plants survive by dropping buds/leaves.
• Do not fertilize during heat stress.
• Wait for cooler weather; plants will recover.

They won't die, but they'll look rough until temperatures drop.