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From what I can see( no photo) , Palmatum Invisibellum. Harry😂

I planted it as a 3 gallon size in 2011, the pics are from pre hurricane Milton so early 2024. If you plant to stay in your house, I'd go with a smaller palm than a 36" box. Alfrediis grow pretty well and my hypothesis is root development will be faster and ultimately more extensive on a young palm with good soil modification than an older one. A 25 gallon size would be as big as I would go. I wold dig a hole for a 36" box and plant the 25 gallon in it with soil ammendments based on what your soil is composed of. I have watched 15 gallon palms outgrow 24" box palms after the install in AZ, they were queens but I had 3 of each and invariably the 15 gallons were bigger and more lush after 7 years. When you said your climate wasn't really a full on desert, I thought it might be near ideal for alfredii which likes sun, heat, and consistent water intervals. I do know they grow in protected areas(from western sun) in arizona but they are not really a happy 110F desert palm. But riverside is quite a bit cooler than arizona, at least 10 degrees. The pics do not do the palm justice, its a beast. I have (3), more sun led to notably bigger palm and faster growth. You should be able to save a lot on a 25 gallon vs a 36" box. One of the things I have learned in 25 years of growing palms is that getting the big size palm is nice for the first few years, but in many cases, it would have been better to save the money and get a little smaller palm since after 5-7 years there is no difference or the (initially) smaller one looks better. In some plants rooting hormones are most dominant at an early age, not sure about palms but what I have seen is consistent with better growth after 5 years from palms that were planted a little bit smaller than the "big" size. Exceptions to that rule are in the really slow growing species. We have lots of butias here in florida, they look better neglected in my area, and they like cool weather as they look a lot better in north florida or in winter here. Alfrediis like heat but they want to get their water to hold a full crown. This is why I say modify your soil to breathe well and hold water. I have sandy soil with half (water holding) clay at 2' under the surface, so I added plenty of top mulch every other year. My place is 40 miles south of Tampa florida within 15-17 miles of the gulf as the crow flies (just south of the skyway bridge).

In general plants spread their range of environments by being the ones that survived under conditions where their siblings did not and it "can" help but usually does not mean a batch of seedlings from one plant will all be more cold hardy unless that batch of seeds has come from a group or swarm of plants that have survived for years under more stressful conditions. It is usually a small percentage of seedlings that carry on a more favorable trait and then that trait can increase over more generations of seedlings from the original survivor but there are limits. Cross breeding of more northern populations can increase the chances of survival to certain conditions. Also if the seedlings just get a cold hardiness gene passed on, then it would be a great step towards a better plant for a colder environment but if it also gets another trait, like hopefully the ability to use sun more efficiently at a more northern latitude then you really have a much better survivor. All plant people want to find those survivors though because it is certainly a way to increase a plants survivability. So yea collect those seeds and give it a try and stay tuned to this forum to buy seeds from people who have already located those desirable plants and sell the seeds.

She blooms 🤗

Thank you very much Harry for your advice. We will do it like this.🤗

PPE here at Sancho's Green Paws means pants.

Winters can be brutal to our plants . Phoenix Roebelini are pretty hardy and should come back once the weather warms up . Watch for new growth , I wouldn’t add any fertilizer at this point and keep them moist . Harry

Archontophoenix as well as others are very slow to start . Many times the first few years can be a lot of work with very little reward . Replacing a tree with something grown from seed takes many years . A greenhouse can speed things up . King palms are fairly common here in Southern California and I bought a one gallon palm for$12 a year ago . I have many seedlings that I grew when one of my mature A. Cunninghamiana dropped a bunch of seeds . The seedlings need constant watering and shade and are very slow growing . I also grew some Howea F. from seed and they are actually passing up the Archontophoenix! It is a great hobby but it takes many years and a lot of patience to grow palms from seed. The exception is the Chamaedorea palms , much faster to gain size and quicker germination rate. Harry This Howea F. Is almost 3 years old and just started speeding up….a bit! A community pot of Chamaedorea Radicalis Tree Form is less than 2 years from seed . I don’t discourage folks from growing from seed , it can be rewarding . It just takes a few years to get rolling . Once you get about 5-6 years worth of seedlings moving along , you will have palms that may be ready to plant in the garden. ‘This Chamaedorea Radicalis ( middle of pic) was a volounteer from one of many Tree Form Radicalis I have around our house . About 5 years old when this was taken a year ago. It is forming a trunk already . Have fun with it and be patient. Harry

Our Phönix roebellinii after a very very cold Winter are looking like this ... Subtropical microzone on the balcony.

This winter was indeed very very cold. Our Phönix Canariensis are in better shape then thought. Subtropical microzone on the balcony.

Il manque la photo.

Our Phönix reclinata after a very very cold Winter .... Subtropical microzone on the balcony

Do you have a photo or link to a photo?

Good Question. Problem is, a palm produces hundreds of seeds in a season so, there is still randomness in the genetics they carry. After many generations, yes it plays out. Like isolated populations of Washingtonia filifera in the California desert. Other factors affect a Palm's cold-hardiness. Was it seed-planted? Planted from a 10-in pot? Was it planted bare-root with 10-ft of trunk? In marginal areas the results are different. I know that Needle palms from Monrovia are not as cold-hardy as those grown east of the MS river. I can't say why. Maybe their herd isn't culled because they grow in warm weather. Local ones come from the Gulf Coast where cold winters occur yearly.

What type of palm are you wanting. Palms from northern populations ‘could’ be more cold hardy

Do you think where palms seeds are harvested ( northern soarced) will be more cold hardy ?

Hi all, There are some discutions in France about what this palm could be. Can you give your opinion. This palm grows in TOULON, on the south coast, zone 10a.

Cryosophila seeds are Sold Out. Thanks

Wait ur dypsis decipens died do u know what Is the hybrid of the f2 dypsis decipens also where did u get ur parajubaea sunkha ive been looking for them

Sabal Yapa & Brahea (when blue meets silver)

I have always separated mine successfully. They might be a bit root-sensitive but they're nothing like Johannesteijsmannia! I had a container of A. alexandrae where there were 4 of them started from seed and they spent 2 years in there and then I separated them. Roots were all tangled up, but not so much I had to break anything. And I haven't had issues separating doubles. I usually plant 2-5 seedlings per container after they germinate to save space. And separate them after a year or two, depending on how fast they grow. But of course, roots must be disturbed as little as possible with any palm tree. I currently have a container of 6 that I gotta do in the coming days.

What caught my eye today was a whole stack of kerriodoxas looking pretty good!

Time to move to the tropics and forget about the darn cold weather holding you back, I could lease you a greenhouse, but then I will be in the same boat as you!

Good stuff! Direct sowing should work really well you'd think. Keep us posted on their progress...love a good experiment.

Below find the 11a USDA stations in Greece that belong officially to the National Observatory of Athens. 25 official met stations in total. Data updated for 2026. https://11ausdanoastations.netlify.app/