Raised Garden Bed success?!

[Mohsen]

Today we've been invited to a very modern commercial/residential complex tower ...

They have used Raised Garden Bed  everywhere...and some mature palms were growing there, kings, Livistona , golden cane, Kentia, Washingtonia ...I thought that maybe at the bottom the roots get to the ground and then I realised we are at level 5 and perhaps 20 meter above the ground so definitely  the Raised Garden Bed  volume was the only available medium to the roots... the height of the Raised Garden Bed  was 70cm... so I am more optimistic now if I build a Raised Garden Bed  on my rocky yard and I will be able to grow palms to maturity size...I am not sure how they managed the drainage though...

anyone has any more examples and also drainage strategy ?

 

[Monòver]

Four years ago i was buildind a similar garden in a residential complex.

We was planting 17 meters trunk Washintonias, because the developer wantted too see palms on the houses tops.

The raised bed has 120 cm around Washintonias and 40 cm in the companion plants area.

The drainage was very easy, a few holes in the bottom connected with a 2" pipe. Around the hole we was putting a plastic net.

Sorry, but i don't have photos.

[Mohsen]

38 minutes ago, Monòver said:

Four years ago i was buildind a similar garden in a residential complex.

We was planting 17 meters trunk Washintonias, because the developer wantted too see palms on the houses tops.

The raised bed has 120 cm around Washintonias and 40 cm in the companion plants area.

The drainage was very easy, a few holes in the bottom connected with a 2" pipe. Around the hole we was putting a plastic net.

Sorry, but i don't have photos.

Thanks Antonio

i guess they have transplanted mature palms there too as the whole complex was built 5 years ago...

 

[quaman58]

I have a number of raised planter beds. They work well, but in hindsight I should not have planted Queens in there. Their root systems are just too aggressive to be happy contained. In short order the entire raised planter becomes a solid "brick" of queen roots, that make growing anything else in there difficult. King palms don't seem too bad, but Roystonea needs space also. The good part about raised planter beds is that they have a tendency to hold onto water & not dry out so fast.

[Mohsen]

14 hours ago, quaman58 said:

I have a number of raised planter beds. They work well, but in hindsight I should not have planted Queens in there. Their root systems are just too aggressive to be happy contained. In short order the entire raised planter becomes a solid "brick" of queen roots, that make growing anything else in there difficult. King palms don't seem too bad, but Roystonea needs space also. The good part about raised planter beds is that they have a tendency to hold onto water & not dry out so fast.

Thanks Bret

How about "Large Dypsis es" and Sabal s? are they suitable in raised bed garden?

[quaman58]

Mohsen,

I don't have any of the big Sabals, but I do have a "big" S. minor that is no problem. None of my big Dypsis are big enough to create any problems either. Even a larger Beccariophoenix doesn't seem too bad; I dug a smaller hole just a couple feet to the side of it last week & had very few roots to battle through.