It will also help you understand why your succulent grew in size. To keep your succulent growing well, you'll likely have to try to save its healthier parts. The best time to fertilize is during active growing seasons. The more fertiliser you use, the larger the pot or plant. These fungi can be controlled with the recommended chemicals. Because the agave seeds can be very large, aerial irrigation is also an option. Usually, frost impacts the Agave plant's root system, affecting its ability to recover and thrive after the summer rains arrive.