To prevent plant growing containers like flower pots which are put on the balcony of residence from being blown down.

This frame to prevent plant growing containers like flower pots which are put on the residence balcony consists of a frame a and a frame b which has; a securing part 3a (3b) which are used to be secured at balcony handrails 9; a supporting frame 4a (4b) extending toward the direction opposite to the outside space of a balcony; a longitudinally extendable frame 5a (5b) which is fitted in the supporting frame 4a (4b) so that it can be extended freely; and two laterally extendable frames 6a and 7a (6a and 7b) which extend side by side with each other from the supporting frame 4a (4b) and the longitudinally extendable frame 5a (5b). A plant growing container 26 is secured by using the frame 1, which prevent the container from being blow over, consists of the laterally extendable frames 6a and 7a which has the laterally extendable frame 6a and 7b fitted in them.