Reading around the web, many say the exact opposite of another 'expert'.
Specifically pertaining to Junipers, I'm reading don't use nitrogen or use high fertilizers high in nitrogen.
When is the best time to fertilize and what fertilizer do you recommend?
They are all potted junipers
I have 7 Junipers, 20l x3, and the rest in small pots.
One, potted in a cascade pot is almost completely brown
Another has brown at tips
The youngest 2 are suffering the most
They were all repotted 14 months ago and have been doing well until a few months ago.
Soil used. 3 parts: A general potting mix strained to remove fine particles and sand. Organic including pine bark left 1 part Vermaculite and Leca add Bone meal add Seaweed add multicote slow release
weather here is not the best. - Strong winds. average 20km gusts 30km - Our summers are hot 28c + - we have moved into autumn and it averages 24c
They are positioned outside on benches. They receive partial to full sun.
Focusing on the two unhealthy junipers.
I forget the exact species, but its blue crawling variety. The second is marketed here as Gold Coast
Watering. I cant explain, but I sense when it needs it, the way the tree and soil is looking on the surface. Since the wind and sun dry the pots out fairly quickly, it tends to be every day when at its worst or 4 days when its calmer.
The scales seem to thin when under watered (This is probably not factual) and droop when rounded, when it gets too much. Once again, not science. Its worked for years and they are healthy trees except for the two.
Thee crawler is potted in a cascade but is completely brown except for odd tips. I worry about the cascade pots for air pockets so I tap the pot and water it well often. I have tried a number of things, including liquid fertilizer 6 months ago, but nothing is perking this tree up. Should I repot? Would another bout of liquid fertilizer rich in nitrogen help this tree? Should I pit it in shade..
the other has brown tips (the opposite) to the crawler. Its potted in a forest with Natasja Ficus. Its a shallow pot but the roots have lots of horizontal space. All the other trees are doing well in the same planting.