Slash Pine


Slash Pine:(Pinus elliottii) is a coniferous tree native to the Southern United States and is the only pine variety that can be successfully grown indoors. One of the Slash Pine's notable features is its flaky bark that quickly thickens. Although the Pine needles tend to be long on the Slash Pine, that is part of its unique look. 


Many of our customers have asked about growing Pines indoors, and the Slash Pine is the answer. 


Slash Pines can row successfully outside during warm summer months and then be brought indoors to continue its growth year-round. 


  1. Slash Pine like a more moist soil than most pines, so the soil should not be left to dry completely. During warm weather, misting is recommended. If grown indoors, it must be placed in an area with at least 4-6 hours of direct sunlight a day; otherwise, a supplemental grow light will be necessary. 

  • Training: Slash Pine's younger branches are very flexible and take well to wiring. 

  • Repotting: Slash Pines need to be repotted every 2-3 years during development. During refinement, depending on the size of the pot, this should most likely be done every other year. 


YOUNG: 10"-14" tall, comes in a 6" grower's pot. 

MATURE: 10"-16" tall, comes in an 8" handmade Bonsai pot. 


These are not seeds - But an Actual Living Bonsai Tree.

Please see our Choosing a Bonsai page for the age and dimensions regarding the different stages of our Bonsai (Baby, Young, & Mature).

Soil (Substrate)

Bonsai soils are usually a mixture of organic potting compost (Pine Bark or Forest Floor), Akadamapumice, lava rock in varying amounts. 

It is important for the soil have good water retention while also draining well, along with very good aeration. The quality of the soil directly affects the health, size and growth of your tree. One of the worst things you can do to your tree is plant it in regular garden soil. Garden soil hardens when it drys and can often lead to a disadvantage when growing a Bonsai. 

Soil mixtures can be purchased here, but given their weight and cost of shipping, you can also easily make your own. 


Depending on the type of Bonsai you're growing, here are the general formulas for successful mixtures. 

Deciduous Tree (Leafy and looses leafs in the fall)

50% Akadama

20% Pumice

20% Lava Rock

10% Potting Compost


Coniferous Tree (Evergreen like Juniper, Cedar)

1/3 Akadama

1/3 Pumice

1/3 Lava Rock


If you are not able to check on your Bonsai's moisture levels daily, add more Akadama to the mix. 

Given how these soils erode over time, repotting every 2-3 years is required. 


Here are some suitable replacements if you cannot find the recommended types of soil.

  • Akadama - fine fired or baked clays, some even recommend cat litter as a substitute. 
  • Pumice - fine crushed aggregates, expanded shale and vermiculite.
  • Lava Rock - This can be replaced with fine gravel or you can also look into purchasing a larger lava rock at a hardware or gardening centre and crushing it. 



One of the best and easiest ways to fertilize your Bonsai, is to add a liquid fertilizer mix when water your Bonsai's once a month during the spring/summer. If your Bonsai looses leaves in the winter there is no need to fertilize it then. If you have a coniferous tree, fertilizing the tree once in the beginning of winter and once in the middle of winter should be sufficient.


Customer Reviews

Be the first to write a review

You may also like

Recently viewed