Osmocote

Share your ideas on re-potting, potting mediums and fertilisers.
KIRKY
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 1969
Joined: May 21st, 2009, 3:42 pm
Favorite Species: Flowering
Bonsai Age: 12
Bonsai Club: BSV
Location: Melbourne
Has thanked: 1167 times
Been thanked: 246 times

Re: Osmocote

Post by KIRKY »

Just becareful with osmocote when feeding things like Azaleas or any othe plant with surface roots as osmocote can easily burn the roots and some plants will not recover from being overfeed/root burn.
Cheers
Kirky
Great oaks from little acorns grow.
User avatar
treeman
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 2842
Joined: August 15th, 2011, 4:47 pm
Favorite Species: any
Bonsai Age: 25
Location: melbourne
Has thanked: 29 times
Been thanked: 577 times

Re: Osmocote

Post by treeman »

Osmo usually lasts much longer than the nominated time. A 6 month osmocote product will release about 80% of the contents at a constant temperature of 21C. In practice, a 6 month osmo will last you a year without need to add more in average weather (in southern vic) Very high temps will release more. Sometimes a lot more! Therefore, you need to water very thoroughly during these times to leach excess salts.
Mike
User avatar
delisea
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 374
Joined: August 31st, 2014, 8:56 am
Bonsai Age: 1
Bonsai Club: Coffs Harbour
Location: Coffs Harbour
Has thanked: 254 times
Been thanked: 160 times

Re: Osmocote

Post by delisea »

I find it lasts a much shorter time! Maybe because of higher temps or more watering. The release is not even, there is a short burst that rapidly diminishes over time. The key is to observe your trees, they will tell you what they need. Of course limiting N is a key way to reduce leaf size, but if you are on top of those techniques you probably won't be reading this.
Cheers, Symon
Post Reply

Return to “Repotting, Soil and Fertilisers”