Spotting the. A plant I like, but for the moment is missing from my garden, is red hot poker (Kniphofia uvaria). After that, these plants can survive in some periods of. They aren't fussy about humidity. I like the plant - it should do well in my garden and. Unless soil is of very. Learn how to choose a variety of this unusual, flowering perennial for your growing conditions. Enhance soil drainage and adjust watering to prevent future rot. Trim and treat with fungicide to combat root decay effectively. Red hot pokers do best in moderate temperatures, between 60ºF and 90ºF. Fertilizer. All about Red Hot Poker plants, aka Torch Lilies. red hot poker plant poisonous. . Red hot poker plant care involves regular watering until these plants are established.