Plant Care Silver Arrows

Silver Arrows

Also known as

Royal Cross, Silver Arrow and Silver Arrows Cactus


Mammillaria nejapensis

How to care for Silver Arrows


How often to water your Silver Arrows

Water needs for Silver Arrows
0.5 cups
every 12

Silver Arrows needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Silver Arrows

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Silver Arrows in your home

Light needs and placement for plant Silver Arrows: 3ft from a window
3ft or less from
a window

Silver Arrows may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

Select your region to see how the current weather in your area affects the placement of Silver Arrows in your home 🏡.


How to fertilize Silver Arrows

Nutrient, fertilizer, and repotting needs for Silver Arrows: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Silver Arrows after it doubles in size or once a year—whichever comes first.

Care Summary for Silver Arrows

Silver Arrows

Silver Arrows

Greg recommends:


0.5 cups every 12 days


< 3ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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