As an experienced gardening and landscaping expert, I can confidently say that root hormone powder does have a shelf life. However, if it is stored properly, it can last for several years.
The shelf life of root hormone powder is typically around 3-4 years. This means that if you purchase a new bottle of rooting powder, it should still be effective for at least a few years. However, it is important to note that the effectiveness of the powder may decrease over time.
To ensure that your rooting powder lasts as long as possible, it is crucial to store it correctly. Keep the powder at room temperature, avoiding extreme heat or cold. Direct sunlight should also be avoided, as it can degrade the potency of the powder. Instead, store it in a cool, dark place such as a cupboard or pantry.
In terms of best by dates, it is generally recommended to use rooting powder within 2 years of purchase. This is when the powder is likely to be at its most effective. However, even if it has passed this date, the powder may still work to some extent.
I have personally used rooting powder that was a few years past its best by date and still had success with it. While the potency may have decreased slightly, it was still able to stimulate root growth in cuttings.
It is also worth mentioning that the effectiveness of rooting powder can vary depending on the brand and the specific formulation. Some powders may have a longer shelf life or be more potent than others. Therefore, it is always a good idea to check the packaging or manufacturer’s instructions for any specific recommendations.
Root hormone powder does have a shelf life, but if stored properly, it can last for several years. While the best by date is typically around 2 years, the powder may still be effective beyond this timeframe. As long as you keep the powder at room temperature and out of direct sunlight, you can expect it to be usable for a few years.
